20187698181

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5556757}}^1$

素因数の和:5556940

約数の個数: 16

約数和(自身を含む): 30940028544

約数和(自身を除く): 10752330363

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5556757, 16670271, 38897299, 116691897, 961318961, 2883956883, 6729232727, 20187698181]

約数ペア:

[(1, 20187698181), (3, 6729232727), (7, 2883956883), (21, 961318961), (173, 116691897), (519, 38897299), (1211, 16670271), (3633, 5556757)]