21666069

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 12202731

約数列:

[1, 3, 9, 23, 27, 69, 139, 207, 251, 417, 621, 753, 1251, 2259, 3197, 3753, 5773, 6777, 9591, 17319, 28773, 34889, 51957, 86319, 104667, 155871, 314001, 802447, 942003, 2407341, 7222023, 21666069]

約数ペア:

[(1, 21666069), (3, 7222023), (9, 2407341), (23, 942003), (27, 802447), (69, 314001), (139, 155871), (207, 104667), (251, 86319), (417, 51957), (621, 34889), (753, 28773), (1251, 17319), (2259, 9591), (3197, 6777), (3753, 5773)]