21480350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 43510608

約数和(自身を除く): 22030258

約数列:

[1, 2, 5, 10, 17, 25, 34, 37, 50, 74, 85, 170, 185, 370, 425, 629, 683, 850, 925, 1258, 1366, 1850, 3145, 3415, 6290, 6830, 11611, 15725, 17075, 23222, 25271, 31450, 34150, 50542, 58055, 116110, 126355, 252710, 290275, 429607, 580550, 631775, 859214, 1263550, 2148035, 4296070, 10740175, 21480350]

約数ペア:

[(1, 21480350), (2, 10740175), (5, 4296070), (10, 2148035), (17, 1263550), (25, 859214), (34, 631775), (37, 580550), (50, 429607), (74, 290275), (85, 252710), (170, 126355), (185, 116110), (370, 58055), (425, 50542), (629, 34150), (683, 31450), (850, 25271), (925, 23222), (1258, 17075), (1366, 15725), (1850, 11611), (3145, 6830), (3415, 6290)]