21500580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:333

約数の個数: 96

約数和(自身を含む): 64665216

約数和(自身を除く): 43164636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 107, 170, 197, 204, 214, 255, 321, 340, 394, 428, 510, 535, 591, 642, 788, 985, 1020, 1070, 1182, 1284, 1605, 1819, 1970, 2140, 2364, 2955, 3210, 3349, 3638, 3940, 5457, 5910, 6420, 6698, 7276, 9095, 10047, 10914, 11820, 13396, 16745, 18190, 20094, 21079, 21828, 27285, 33490, 36380, 40188, 42158, 50235, 54570, 63237, 66980, 84316, 100470, 105395, 109140, 126474, 200940, 210790, 252948, 316185, 358343, 421580, 632370, 716686, 1075029, 1264740, 1433372, 1791715, 2150058, 3583430, 4300116, 5375145, 7166860, 10750290, 21500580]

約数ペア:

[(1, 21500580), (2, 10750290), (3, 7166860), (4, 5375145), (5, 4300116), (6, 3583430), (10, 2150058), (12, 1791715), (15, 1433372), (17, 1264740), (20, 1075029), (30, 716686), (34, 632370), (51, 421580), (60, 358343), (68, 316185), (85, 252948), (102, 210790), (107, 200940), (170, 126474), (197, 109140), (204, 105395), (214, 100470), (255, 84316), (321, 66980), (340, 63237), (394, 54570), (428, 50235), (510, 42158), (535, 40188), (591, 36380), (642, 33490), (788, 27285), (985, 21828), (1020, 21079), (1070, 20094), (1182, 18190), (1284, 16745), (1605, 13396), (1819, 11820), (1970, 10914), (2140, 10047), (2364, 9095), (2955, 7276), (3210, 6698), (3349, 6420), (3638, 5910), (3940, 5457)]