155491161

素因数分解:

$3^1\times 7^4\times {\mathrm{21587}}^1$

素因数の和:21618

約数の個数: 20

約数和(自身を含む): 241871952

約数和(自身を除く): 86380791

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 21587, 64761, 151109, 453327, 1057763, 3173289, 7404341, 22213023, 51830387, 155491161]

約数ペア:

[(1, 155491161), (3, 51830387), (7, 22213023), (21, 7404341), (49, 3173289), (147, 1057763), (343, 453327), (1029, 151109), (2401, 64761), (7203, 21587)]