21402

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:78

約数の個数: 24

約数和(自身を含む): 49140

約数和(自身を除く): 27738

約数列:

[1, 2, 3, 6, 9, 18, 29, 41, 58, 82, 87, 123, 174, 246, 261, 369, 522, 738, 1189, 2378, 3567, 7134, 10701, 21402]

約数ペア:

[(1, 21402), (2, 10701), (3, 7134), (6, 3567), (9, 2378), (18, 1189), (29, 738), (41, 522), (58, 369), (82, 261), (87, 246), (123, 174)]