19518554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5651}}^1$

素因数の和:5821

約数の個数: 16

約数和(自身を含む): 32148576

約数和(自身を除く): 12630022

約数列:

[1, 2, 11, 22, 157, 314, 1727, 3454, 5651, 11302, 62161, 124322, 887207, 1774414, 9759277, 19518554]

約数ペア:

[(1, 19518554), (2, 9759277), (11, 1774414), (22, 887207), (157, 124322), (314, 62161), (1727, 11302), (3454, 5651)]