21491285769

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8943523}}^1$

素因数の和:8943621

約数の個数: 16

約数和(自身を含む): 32196686400

約数和(自身を除く): 10705400631

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8943523, 26830569, 80491707, 241475121, 795973547, 2387920641, 7163761923, 21491285769]

約数ペア:

[(1, 21491285769), (3, 7163761923), (9, 2387920641), (27, 795973547), (89, 241475121), (267, 80491707), (801, 26830569), (2403, 8943523)]