18943678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42859}}^1$

素因数の和:42891

約数の個数: 16

約数和(自身を含む): 32402160

約数和(自身を除く): 13458482

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 42859, 85718, 557167, 728603, 1114334, 1457206, 9471839, 18943678]

約数ペア:

[(1, 18943678), (2, 9471839), (13, 1457206), (17, 1114334), (26, 728603), (34, 557167), (221, 85718), (442, 42859)]