18977276

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{5807}}^1$

素因数の和:5873

約数の個数: 24

約数和(自身を含む): 35777280

約数和(自身を除く): 16800004

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 5807, 11614, 23228, 110333, 220666, 249701, 441332, 499402, 998804, 4744319, 9488638, 18977276]

約数ペア:

[(1, 18977276), (2, 9488638), (4, 4744319), (19, 998804), (38, 499402), (43, 441332), (76, 249701), (86, 220666), (172, 110333), (817, 23228), (1634, 11614), (3268, 5807)]