20210858315

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{563}}^1\times {\mathrm{853}}^1$

素因数の和:1883

約数の個数: 32

約数和(自身を含む): 25662631680

約数和(自身を除く): 5451773365

約数列:

[1, 5, 19, 95, 443, 563, 853, 2215, 2815, 4265, 8417, 10697, 16207, 42085, 53485, 81035, 249409, 377879, 480239, 1247045, 1889395, 2401195, 4738771, 7179701, 9124541, 23693855, 35898505, 45622705, 212745877, 1063729385, 4042171663, 20210858315]

約数ペア:

[(1, 20210858315), (5, 4042171663), (19, 1063729385), (95, 212745877), (443, 45622705), (563, 35898505), (853, 23693855), (2215, 9124541), (2815, 7179701), (4265, 4738771), (8417, 2401195), (10697, 1889395), (16207, 1247045), (42085, 480239), (53485, 377879), (81035, 249409)]