21118500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:76

約数の個数: 216

約数和(自身を含む): 75721464

約数和(自身を除く): 54602964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 25, 26, 30, 36, 38, 39, 45, 50, 52, 57, 60, 65, 75, 76, 78, 90, 95, 100, 114, 117, 125, 130, 150, 156, 171, 180, 190, 195, 225, 228, 234, 247, 250, 260, 285, 300, 325, 342, 361, 375, 380, 390, 450, 468, 475, 494, 500, 570, 585, 650, 684, 722, 741, 750, 780, 855, 900, 950, 975, 988, 1083, 1125, 1140, 1170, 1235, 1300, 1425, 1444, 1482, 1500, 1625, 1710, 1805, 1900, 1950, 2166, 2223, 2250, 2340, 2375, 2470, 2850, 2925, 2964, 3249, 3250, 3420, 3610, 3705, 3900, 4275, 4332, 4446, 4500, 4693, 4750, 4875, 4940, 5415, 5700, 5850, 6175, 6498, 6500, 7125, 7220, 7410, 8550, 8892, 9025, 9386, 9500, 9750, 10830, 11115, 11700, 12350, 12996, 14079, 14250, 14625, 14820, 16245, 17100, 18050, 18525, 18772, 19500, 21375, 21660, 22230, 23465, 24700, 27075, 28158, 28500, 29250, 30875, 32490, 36100, 37050, 42237, 42750, 44460, 45125, 46930, 54150, 55575, 56316, 58500, 61750, 64980, 70395, 74100, 81225, 84474, 85500, 90250, 92625, 93860, 108300, 111150, 117325, 123500, 135375, 140790, 162450, 168948, 180500, 185250, 211185, 222300, 234650, 270750, 277875, 281580, 324900, 351975, 370500, 406125, 422370, 469300, 541500, 555750, 586625, 703950, 812250, 844740, 1055925, 1111500, 1173250, 1407900, 1624500, 1759875, 2111850, 2346500, 3519750, 4223700, 5279625, 7039500, 10559250, 21118500]

約数ペア:

[(1, 21118500), (2, 10559250), (3, 7039500), (4, 5279625), (5, 4223700), (6, 3519750), (9, 2346500), (10, 2111850), (12, 1759875), (13, 1624500), (15, 1407900), (18, 1173250), (19, 1111500), (20, 1055925), (25, 844740), (26, 812250), (30, 703950), (36, 586625), (38, 555750), (39, 541500), (45, 469300), (50, 422370), (52, 406125), (57, 370500), (60, 351975), (65, 324900), (75, 281580), (76, 277875), (78, 270750), (90, 234650), (95, 222300), (100, 211185), (114, 185250), (117, 180500), (125, 168948), (130, 162450), (150, 140790), (156, 135375), (171, 123500), (180, 117325), (190, 111150), (195, 108300), (225, 93860), (228, 92625), (234, 90250), (247, 85500), (250, 84474), (260, 81225), (285, 74100), (300, 70395), (325, 64980), (342, 61750), (361, 58500), (375, 56316), (380, 55575), (390, 54150), (450, 46930), (468, 45125), (475, 44460), (494, 42750), (500, 42237), (570, 37050), (585, 36100), (650, 32490), (684, 30875), (722, 29250), (741, 28500), (750, 28158), (780, 27075), (855, 24700), (900, 23465), (950, 22230), (975, 21660), (988, 21375), (1083, 19500), (1125, 18772), (1140, 18525), (1170, 18050), (1235, 17100), (1300, 16245), (1425, 14820), (1444, 14625), (1482, 14250), (1500, 14079), (1625, 12996), (1710, 12350), (1805, 11700), (1900, 11115), (1950, 10830), (2166, 9750), (2223, 9500), (2250, 9386), (2340, 9025), (2375, 8892), (2470, 8550), (2850, 7410), (2925, 7220), (2964, 7125), (3249, 6500), (3250, 6498), (3420, 6175), (3610, 5850), (3705, 5700), (3900, 5415), (4275, 4940), (4332, 4875), (4446, 4750), (4500, 4693)]