208353609

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{1303}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 305814080

約数和(自身を除く): 97460471

約数列:

[1, 3, 9, 109, 163, 327, 489, 981, 1303, 1467, 3909, 11727, 17767, 53301, 142027, 159903, 212389, 426081, 637167, 1278243, 1911501, 23150401, 69451203, 208353609]

約数ペア:

[(1, 208353609), (3, 69451203), (9, 23150401), (109, 1911501), (163, 1278243), (327, 637167), (489, 426081), (981, 212389), (1303, 159903), (1467, 142027), (3909, 53301), (11727, 17767)]