21274058

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{557}}^1$

素因数の和:698

約数の個数: 24

約数和(自身を含む): 34922988

約数和(自身を除く): 13648930

約数列:

[1, 2, 13, 26, 113, 169, 226, 338, 557, 1114, 1469, 2938, 7241, 14482, 19097, 38194, 62941, 94133, 125882, 188266, 818233, 1636466, 10637029, 21274058]

約数ペア:

[(1, 21274058), (2, 10637029), (13, 1636466), (26, 818233), (113, 188266), (169, 125882), (226, 94133), (338, 62941), (557, 38194), (1114, 19097), (1469, 14482), (2938, 7241)]