21383550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 62964720

約数和(自身を除く): 41581170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 41, 45, 50, 57, 61, 75, 82, 90, 95, 114, 122, 123, 150, 171, 183, 190, 205, 225, 246, 285, 305, 342, 366, 369, 410, 450, 475, 549, 570, 610, 615, 738, 779, 855, 915, 950, 1025, 1098, 1159, 1230, 1425, 1525, 1558, 1710, 1830, 1845, 2050, 2318, 2337, 2501, 2745, 2850, 3050, 3075, 3477, 3690, 3895, 4275, 4575, 4674, 5002, 5490, 5795, 6150, 6954, 7011, 7503, 7790, 8550, 9150, 9225, 10431, 11590, 11685, 12505, 13725, 14022, 15006, 17385, 18450, 19475, 20862, 22509, 23370, 25010, 27450, 28975, 34770, 35055, 37515, 38950, 45018, 47519, 52155, 57950, 58425, 62525, 70110, 75030, 86925, 95038, 104310, 112545, 116850, 125050, 142557, 173850, 175275, 187575, 225090, 237595, 260775, 285114, 350550, 375150, 427671, 475190, 521550, 562725, 712785, 855342, 1125450, 1187975, 1425570, 2138355, 2375950, 3563925, 4276710, 7127850, 10691775, 21383550]

約数ペア:

[(1, 21383550), (2, 10691775), (3, 7127850), (5, 4276710), (6, 3563925), (9, 2375950), (10, 2138355), (15, 1425570), (18, 1187975), (19, 1125450), (25, 855342), (30, 712785), (38, 562725), (41, 521550), (45, 475190), (50, 427671), (57, 375150), (61, 350550), (75, 285114), (82, 260775), (90, 237595), (95, 225090), (114, 187575), (122, 175275), (123, 173850), (150, 142557), (171, 125050), (183, 116850), (190, 112545), (205, 104310), (225, 95038), (246, 86925), (285, 75030), (305, 70110), (342, 62525), (366, 58425), (369, 57950), (410, 52155), (450, 47519), (475, 45018), (549, 38950), (570, 37515), (610, 35055), (615, 34770), (738, 28975), (779, 27450), (855, 25010), (915, 23370), (950, 22509), (1025, 20862), (1098, 19475), (1159, 18450), (1230, 17385), (1425, 15006), (1525, 14022), (1558, 13725), (1710, 12505), (1830, 11685), (1845, 11590), (2050, 10431), (2318, 9225), (2337, 9150), (2501, 8550), (2745, 7790), (2850, 7503), (3050, 7011), (3075, 6954), (3477, 6150), (3690, 5795), (3895, 5490), (4275, 5002), (4575, 4674)]