21496340

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5569}}^1$

素因数の和:5771

約数の個数: 24

約数和(自身を含む): 45384360

約数和(自身を除く): 23888020

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5569, 11138, 22276, 27845, 55690, 111380, 1074817, 2149634, 4299268, 5374085, 10748170, 21496340]

約数ペア:

[(1, 21496340), (2, 10748170), (4, 5374085), (5, 4299268), (10, 2149634), (20, 1074817), (193, 111380), (386, 55690), (772, 27845), (965, 22276), (1930, 11138), (3860, 5569)]