31399748

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1129}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 58375800

約数和(自身を除く): 26976052

約数列:

[1, 2, 4, 17, 34, 68, 409, 818, 1129, 1636, 2258, 4516, 6953, 13906, 19193, 27812, 38386, 76772, 461761, 923522, 1847044, 7849937, 15699874, 31399748]

約数ペア:

[(1, 31399748), (2, 15699874), (4, 7849937), (17, 1847044), (34, 923522), (68, 461761), (409, 76772), (818, 38386), (1129, 27812), (1636, 19193), (2258, 13906), (4516, 6953)]