20951288404

素因数分解:

$2^2\times {\mathrm{13259}}^1\times {\mathrm{395039}}^1$

素因数の和:408302

約数の個数: 12

約数和(自身を含む): 36667612800

約数和(自身を除く): 15716324396

約数列:

[1, 2, 4, 13259, 26518, 53036, 395039, 790078, 1580156, 5237822101, 10475644202, 20951288404]

約数ペア:

[(1, 20951288404), (2, 10475644202), (4, 5237822101), (13259, 1580156), (26518, 790078), (53036, 395039)]