21212514

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{40637}}^1$

素因数の和:40674

約数の個数: 24

約数和(自身を含む): 47546460

約数和(自身を除く): 26333946

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 40637, 81274, 121911, 243822, 365733, 731466, 1178473, 2356946, 3535419, 7070838, 10606257, 21212514]

約数ペア:

[(1, 21212514), (2, 10606257), (3, 7070838), (6, 3535419), (9, 2356946), (18, 1178473), (29, 731466), (58, 365733), (87, 243822), (174, 121911), (261, 81274), (522, 40637)]