20552217

素因数分解:

$3^1\times 7^3\times {\mathrm{19973}}^1$

素因数の和:19997

約数の個数: 16

約数和(自身を含む): 31958400

約数和(自身を除く): 11406183

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 19973, 59919, 139811, 419433, 978677, 2936031, 6850739, 20552217]

約数ペア:

[(1, 20552217), (3, 6850739), (7, 2936031), (21, 978677), (49, 419433), (147, 139811), (343, 59919), (1029, 19973)]