21227866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 37091520

約数和(自身を除く): 15863654

約数列:

[1, 2, 11, 17, 22, 34, 187, 211, 269, 374, 422, 538, 2321, 2959, 3587, 4573, 4642, 5918, 7174, 9146, 39457, 50303, 56759, 78914, 100606, 113518, 624349, 964903, 1248698, 1929806, 10613933, 21227866]

約数ペア:

[(1, 21227866), (2, 10613933), (11, 1929806), (17, 1248698), (22, 964903), (34, 624349), (187, 113518), (211, 100606), (269, 78914), (374, 56759), (422, 50303), (538, 39457), (2321, 9146), (2959, 7174), (3587, 5918), (4573, 4642)]