18218590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{140143}}^1$

素因数の和:140163

約数の個数: 16

約数和(自身を含む): 35316288

約数和(自身を除く): 17097698

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 140143, 280286, 700715, 1401430, 1821859, 3643718, 9109295, 18218590]

約数ペア:

[(1, 18218590), (2, 9109295), (5, 3643718), (10, 1821859), (13, 1401430), (26, 700715), (65, 280286), (130, 140143)]