20861511

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{7103}}^1$

素因数の和:7206

約数の個数: 16

約数和(自身を含む): 30689280

約数和(自身を除く): 9827769

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 7103, 21309, 78133, 234399, 632167, 1896501, 6953837, 20861511]

約数ペア:

[(1, 20861511), (3, 6953837), (11, 1896501), (33, 632167), (89, 234399), (267, 78133), (979, 21309), (2937, 7103)]