21942580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5867}}^1$

素因数の和:5904

約数の個数: 48

約数和(自身を含む): 53234496

約数和(自身を除く): 31291916

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5867, 11734, 23468, 29335, 58670, 64537, 99739, 117340, 129074, 199478, 258148, 322685, 398956, 498695, 645370, 997390, 1097129, 1290740, 1994780, 2194258, 4388516, 5485645, 10971290, 21942580]

約数ペア:

[(1, 21942580), (2, 10971290), (4, 5485645), (5, 4388516), (10, 2194258), (11, 1994780), (17, 1290740), (20, 1097129), (22, 997390), (34, 645370), (44, 498695), (55, 398956), (68, 322685), (85, 258148), (110, 199478), (170, 129074), (187, 117340), (220, 99739), (340, 64537), (374, 58670), (748, 29335), (935, 23468), (1870, 11734), (3740, 5867)]