21631941

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9209}}^1$

素因数の和:9250

約数の個数: 20

約数和(自身を含む): 33432300

約数和(自身を除く): 11800359

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9209, 27627, 82881, 248643, 267061, 745929, 801183, 2403549, 7210647, 21631941]

約数ペア:

[(1, 21631941), (3, 7210647), (9, 2403549), (27, 801183), (29, 745929), (81, 267061), (87, 248643), (261, 82881), (783, 27627), (2349, 9209)]