1639401974

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{69661}}^1$

素因数の和:69752

約数の個数: 24

約数和(自身を含む): 2880663024

約数和(自身を除く): 1241261050

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 1681, 3362, 11767, 23534, 69661, 139322, 487627, 975254, 2856101, 5712202, 19992707, 39985414, 117100141, 234200282, 819700987, 1639401974]

約数ペア:

[(1, 1639401974), (2, 819700987), (7, 234200282), (14, 117100141), (41, 39985414), (82, 19992707), (287, 5712202), (574, 2856101), (1681, 975254), (3362, 487627), (11767, 139322), (23534, 69661)]