19002781

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 22284288

約数和(自身を除く): 3281507

約数列:

[1, 7, 61, 191, 233, 427, 1337, 1631, 11651, 14213, 44503, 81557, 99491, 311521, 2714683, 19002781]

約数ペア:

[(1, 19002781), (7, 2714683), (61, 311521), (191, 99491), (233, 81557), (427, 44503), (1337, 14213), (1631, 11651)]