18698057

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 23245056

約数和(自身を除く): 4546999

約数列:

[1, 7, 23, 47, 49, 161, 329, 353, 1081, 1127, 2303, 2471, 7567, 8119, 16591, 17297, 52969, 56833, 116137, 381593, 397831, 812959, 2671151, 18698057]

約数ペア:

[(1, 18698057), (7, 2671151), (23, 812959), (47, 397831), (49, 381593), (161, 116137), (329, 56833), (353, 52969), (1081, 17297), (1127, 16591), (2303, 8119), (2471, 7567)]