20987372

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24179}}^1$

素因数の和:24221

約数の個数: 24

約数和(自身を含む): 43330560

約数和(自身を除く): 22343188

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24179, 48358, 96716, 169253, 338506, 677012, 749549, 1499098, 2998196, 5246843, 10493686, 20987372]

約数ペア:

[(1, 20987372), (2, 10493686), (4, 5246843), (7, 2998196), (14, 1499098), (28, 749549), (31, 677012), (62, 338506), (124, 169253), (217, 96716), (434, 48358), (868, 24179)]