81669511

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{17977}}^1$

素因数の和:18054

約数の個数: 16

約数和(自身を含む): 103553280

約数和(自身を除く): 21883769

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 17977, 125839, 197747, 1060643, 1384229, 7424501, 11667073, 81669511]

約数ペア:

[(1, 81669511), (7, 11667073), (11, 7424501), (59, 1384229), (77, 1060643), (413, 197747), (649, 125839), (4543, 17977)]