18687172

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21529}}^1$

素因数の和:21571

約数の個数: 24

約数和(自身を含む): 38581760

約数和(自身を除く): 19894588

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21529, 43058, 86116, 150703, 301406, 602812, 667399, 1334798, 2669596, 4671793, 9343586, 18687172]

約数ペア:

[(1, 18687172), (2, 9343586), (4, 4671793), (7, 2669596), (14, 1334798), (28, 667399), (31, 602812), (62, 301406), (124, 150703), (217, 86116), (434, 43058), (868, 21529)]