21028942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5281}}^1$

素因数の和:5475

約数の個数: 16

約数和(自身を含む): 34607664

約数和(自身を除く): 13578722

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 5281, 10562, 58091, 116182, 955861, 1911722, 10514471, 21028942]

約数ペア:

[(1, 21028942), (2, 10514471), (11, 1911722), (22, 955861), (181, 116182), (362, 58091), (1991, 10562), (3982, 5281)]