20742172

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{599}}^1\times {\mathrm{787}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 39715200

約数和(自身を除く): 18973028

約数列:

[1, 2, 4, 11, 22, 44, 599, 787, 1198, 1574, 2396, 3148, 6589, 8657, 13178, 17314, 26356, 34628, 471413, 942826, 1885652, 5185543, 10371086, 20742172]

約数ペア:

[(1, 20742172), (2, 10371086), (4, 5185543), (11, 1885652), (22, 942826), (44, 471413), (599, 34628), (787, 26356), (1198, 17314), (1574, 13178), (2396, 8657), (3148, 6589)]