18886426

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:886

約数の個数: 24

約数和(自身を含む): 31148064

約数和(自身を除く): 12261638

約数列:

[1, 2, 13, 26, 71, 142, 169, 338, 787, 923, 1574, 1846, 10231, 11999, 20462, 23998, 55877, 111754, 133003, 266006, 726401, 1452802, 9443213, 18886426]

約数ペア:

[(1, 18886426), (2, 9443213), (13, 1452802), (26, 726401), (71, 266006), (142, 133003), (169, 111754), (338, 55877), (787, 23998), (923, 20462), (1574, 11999), (1846, 10231)]