18966668

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21851}}^1$

素因数の和:21893

約数の個数: 24

約数和(自身を含む): 39158784

約数和(自身を除く): 20192116

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21851, 43702, 87404, 152957, 305914, 611828, 677381, 1354762, 2709524, 4741667, 9483334, 18966668]

約数ペア:

[(1, 18966668), (2, 9483334), (4, 4741667), (7, 2709524), (14, 1354762), (28, 677381), (31, 611828), (62, 305914), (124, 152957), (217, 87404), (434, 43702), (868, 21851)]