21000905719913

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{2927}}^1\times {\mathrm{60293201}}^1$

素因数の和:60296152

約数の個数: 16

約数和(自身を含む): 25421543345664

約数和(自身を除く): 4420637625751

約数列:

[1, 7, 17, 119, 2927, 20489, 49759, 348313, 60293201, 422052407, 1024984417, 7174890919, 176478199327, 1235347395289, 3000129388559, 21000905719913]

約数ペア:

[(1, 21000905719913), (7, 3000129388559), (17, 1235347395289), (119, 176478199327), (2927, 7174890919), (20489, 1024984417), (49759, 422052407), (348313, 60293201)]