21890603938

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17568703}}^1$

素因数の和:17568801

約数の個数: 16

約数和(自身を含む): 37948400640

約数和(自身を除く): 16057796702

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17568703, 35137406, 122980921, 245961842, 1563614567, 3127229134, 10945301969, 21890603938]

約数ペア:

[(1, 21890603938), (2, 10945301969), (7, 3127229134), (14, 1563614567), (89, 245961842), (178, 122980921), (623, 35137406), (1246, 17568703)]