21338468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{2777}}^1$

素因数の和:2911

約数の個数: 24

約数和(自身を含む): 39903192

約数和(自身を除く): 18564724

約数列:

[1, 2, 4, 17, 34, 68, 113, 226, 452, 1921, 2777, 3842, 5554, 7684, 11108, 47209, 94418, 188836, 313801, 627602, 1255204, 5334617, 10669234, 21338468]

約数ペア:

[(1, 21338468), (2, 10669234), (4, 5334617), (17, 1255204), (34, 627602), (68, 313801), (113, 188836), (226, 94418), (452, 47209), (1921, 11108), (2777, 7684), (3842, 5554)]