21000481500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{13903}}^1$

素因数の和:13997

約数の個数: 192

約数和(自身を含む): 65591285760

約数和(自身を除く): 44590804260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 53, 57, 60, 75, 76, 95, 100, 106, 114, 125, 150, 159, 190, 212, 228, 250, 265, 285, 300, 318, 375, 380, 475, 500, 530, 570, 636, 750, 795, 950, 1007, 1060, 1140, 1325, 1425, 1500, 1590, 1900, 2014, 2375, 2650, 2850, 3021, 3180, 3975, 4028, 4750, 5035, 5300, 5700, 6042, 6625, 7125, 7950, 9500, 10070, 12084, 13250, 13903, 14250, 15105, 15900, 19875, 20140, 25175, 26500, 27806, 28500, 30210, 39750, 41709, 50350, 55612, 60420, 69515, 75525, 79500, 83418, 100700, 125875, 139030, 151050, 166836, 208545, 251750, 264157, 278060, 302100, 347575, 377625, 417090, 503500, 528314, 695150, 736859, 755250, 792471, 834180, 1042725, 1056628, 1320785, 1390300, 1473718, 1510500, 1584942, 1737875, 2085450, 2210577, 2641570, 2947436, 3169884, 3475750, 3684295, 3962355, 4170900, 4421154, 5213625, 5283140, 6603925, 6951500, 7368590, 7924710, 8842308, 10427250, 11052885, 13207850, 14000321, 14737180, 15849420, 18421475, 19811775, 20854500, 22105770, 26415700, 28000642, 33019625, 36842950, 39623550, 42000963, 44211540, 55264425, 56001284, 66039250, 70001605, 73685900, 79247100, 84001926, 92107375, 99058875, 110528850, 132078500, 140003210, 168003852, 184214750, 198117750, 210004815, 221057700, 276322125, 280006420, 350008025, 368429500, 396235500, 420009630, 552644250, 700016050, 840019260, 1050024075, 1105288500, 1400032100, 1750040125, 2100048150, 3500080250, 4200096300, 5250120375, 7000160500, 10500240750, 21000481500]

約数ペア:

[(1, 21000481500), (2, 10500240750), (3, 7000160500), (4, 5250120375), (5, 4200096300), (6, 3500080250), (10, 2100048150), (12, 1750040125), (15, 1400032100), (19, 1105288500), (20, 1050024075), (25, 840019260), (30, 700016050), (38, 552644250), (50, 420009630), (53, 396235500), (57, 368429500), (60, 350008025), (75, 280006420), (76, 276322125), (95, 221057700), (100, 210004815), (106, 198117750), (114, 184214750), (125, 168003852), (150, 140003210), (159, 132078500), (190, 110528850), (212, 99058875), (228, 92107375), (250, 84001926), (265, 79247100), (285, 73685900), (300, 70001605), (318, 66039250), (375, 56001284), (380, 55264425), (475, 44211540), (500, 42000963), (530, 39623550), (570, 36842950), (636, 33019625), (750, 28000642), (795, 26415700), (950, 22105770), (1007, 20854500), (1060, 19811775), (1140, 18421475), (1325, 15849420), (1425, 14737180), (1500, 14000321), (1590, 13207850), (1900, 11052885), (2014, 10427250), (2375, 8842308), (2650, 7924710), (2850, 7368590), (3021, 6951500), (3180, 6603925), (3975, 5283140), (4028, 5213625), (4750, 4421154), (5035, 4170900), (5300, 3962355), (5700, 3684295), (6042, 3475750), (6625, 3169884), (7125, 2947436), (7950, 2641570), (9500, 2210577), (10070, 2085450), (12084, 1737875), (13250, 1584942), (13903, 1510500), (14250, 1473718), (15105, 1390300), (15900, 1320785), (19875, 1056628), (20140, 1042725), (25175, 834180), (26500, 792471), (27806, 755250), (28500, 736859), (30210, 695150), (39750, 528314), (41709, 503500), (50350, 417090), (55612, 377625), (60420, 347575), (69515, 302100), (75525, 278060), (79500, 264157), (83418, 251750), (100700, 208545), (125875, 166836), (139030, 151050)]