21842645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{971}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 28693440

約数和(自身を除く): 6850795

約数列:

[1, 5, 11, 55, 409, 971, 2045, 4499, 4855, 10681, 22495, 53405, 397139, 1985695, 4368529, 21842645]

約数ペア:

[(1, 21842645), (5, 4368529), (11, 1985695), (55, 397139), (409, 53405), (971, 22495), (2045, 10681), (4499, 4855)]