21472418

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{88729}}^1$

素因数の和:88753

約数の個数: 12

約数和(自身を含む): 35403270

約数和(自身を除く): 13930852

約数列:

[1, 2, 11, 22, 121, 242, 88729, 177458, 976019, 1952038, 10736209, 21472418]

約数ペア:

[(1, 21472418), (2, 10736209), (11, 1952038), (22, 976019), (121, 177458), (242, 88729)]