21025236421

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4775207}}^1$

素因数の和:4775268

約数の個数: 16

約数和(自身を含む): 26129938176

約数和(自身を除く): 5104701755

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 4775207, 33426449, 81178519, 176682659, 568249633, 1236778613, 3003605203, 21025236421]

約数ペア:

[(1, 21025236421), (7, 3003605203), (17, 1236778613), (37, 568249633), (119, 176682659), (259, 81178519), (629, 33426449), (4403, 4775207)]