20813419

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 2756501

約数列:

[1, 11, 43, 79, 473, 557, 869, 3397, 6127, 23951, 37367, 44003, 263461, 484033, 1892129, 20813419]

約数ペア:

[(1, 20813419), (11, 1892129), (43, 484033), (79, 263461), (473, 44003), (557, 37367), (869, 23951), (3397, 6127)]