12990278

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{54581}}^1$

素因数の和:54607

約数の個数: 16

約数和(自身を含む): 23579424

約数和(自身を除く): 10589146

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 54581, 109162, 382067, 764134, 927877, 1855754, 6495139, 12990278]

約数ペア:

[(1, 12990278), (2, 6495139), (7, 1855754), (14, 927877), (17, 764134), (34, 382067), (119, 109162), (238, 54581)]