18681964

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21523}}^1$

素因数の和:21565

約数の個数: 24

約数和(自身を含む): 38571008

約数和(自身を除く): 19889044

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21523, 43046, 86092, 150661, 301322, 602644, 667213, 1334426, 2668852, 4670491, 9340982, 18681964]

約数ペア:

[(1, 18681964), (2, 9340982), (4, 4670491), (7, 2668852), (14, 1334426), (28, 667213), (31, 602644), (62, 301322), (124, 150661), (217, 86092), (434, 43046), (868, 21523)]