20512960172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4248749}}^1$

素因数の和:4248841

約数の個数: 24

約数和(自身を含む): 38544660000

約数和(自身を除く): 18031699828

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4828, 4248749, 8497498, 16994996, 72228733, 144457466, 288914932, 301661179, 603322358, 1206644716, 5128240043, 10256480086, 20512960172]

約数ペア:

[(1, 20512960172), (2, 10256480086), (4, 5128240043), (17, 1206644716), (34, 603322358), (68, 301661179), (71, 288914932), (142, 144457466), (284, 72228733), (1207, 16994996), (2414, 8497498), (4828, 4248749)]