21216558

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3121}}^1$

素因数の和:3240

約数の個数: 32

約数和(自身を含む): 46755072

約数和(自身を除く): 25538514

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 103, 206, 309, 618, 1133, 2266, 3121, 3399, 6242, 6798, 9363, 18726, 34331, 68662, 102993, 205986, 321463, 642926, 964389, 1928778, 3536093, 7072186, 10608279, 21216558]

約数ペア:

[(1, 21216558), (2, 10608279), (3, 7072186), (6, 3536093), (11, 1928778), (22, 964389), (33, 642926), (66, 321463), (103, 205986), (206, 102993), (309, 68662), (618, 34331), (1133, 18726), (2266, 9363), (3121, 6798), (3399, 6242)]