21820169

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{433}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 26164992

約数和(自身を除く): 4344823

約数列:

[1, 7, 23, 161, 313, 433, 2191, 3031, 7199, 9959, 50393, 69713, 135529, 948703, 3117167, 21820169]

約数ペア:

[(1, 21820169), (7, 3117167), (23, 948703), (161, 135529), (313, 69713), (433, 50393), (2191, 9959), (3031, 7199)]