18395847

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 27408576

約数和(自身を除く): 9012729

約数列:

[1, 3, 9, 47, 141, 157, 277, 423, 471, 831, 1413, 2493, 7379, 13019, 22137, 39057, 43489, 66411, 117171, 130467, 391401, 2043983, 6131949, 18395847]

約数ペア:

[(1, 18395847), (3, 6131949), (9, 2043983), (47, 391401), (141, 130467), (157, 117171), (277, 66411), (423, 43489), (471, 39057), (831, 22137), (1413, 13019), (2493, 7379)]