19894491

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{3109}}^1$

素因数の和:3200

約数の個数: 20

約数和(自身を含む): 30104800

約数和(自身を除く): 10210309

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 3109, 6399, 9327, 27981, 83943, 245611, 251829, 736833, 2210499, 6631497, 19894491]

約数ペア:

[(1, 19894491), (3, 6631497), (9, 2210499), (27, 736833), (79, 251829), (81, 245611), (237, 83943), (711, 27981), (2133, 9327), (3109, 6399)]