21617836

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17190164

約数列:

[1, 2, 4, 59, 118, 139, 236, 278, 556, 659, 1318, 2636, 8201, 16402, 32804, 38881, 77762, 91601, 155524, 183202, 366404, 5404459, 10808918, 21617836]

約数ペア:

[(1, 21617836), (2, 10808918), (4, 5404459), (59, 366404), (118, 183202), (139, 155524), (236, 91601), (278, 77762), (556, 38881), (659, 32804), (1318, 16402), (2636, 8201)]