20838572

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1031}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 37911552

約数和(自身を除く): 17072980

約数列:

[1, 2, 4, 31, 62, 124, 163, 326, 652, 1031, 2062, 4124, 5053, 10106, 20212, 31961, 63922, 127844, 168053, 336106, 672212, 5209643, 10419286, 20838572]

約数ペア:

[(1, 20838572), (2, 10419286), (4, 5209643), (31, 672212), (62, 336106), (124, 168053), (163, 127844), (326, 63922), (652, 31961), (1031, 20212), (2062, 10106), (4124, 5053)]