20995940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149971}}^1$

素因数の和:149987

約数の個数: 24

約数和(自身を含む): 50390592

約数和(自身を除く): 29394652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149971, 299942, 599884, 749855, 1049797, 1499710, 2099594, 2999420, 4199188, 5248985, 10497970, 20995940]

約数ペア:

[(1, 20995940), (2, 10497970), (4, 5248985), (5, 4199188), (7, 2999420), (10, 2099594), (14, 1499710), (20, 1049797), (28, 749855), (35, 599884), (70, 299942), (140, 149971)]