16516025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 21451008

約数和(自身を除く): 4934983

約数列:

[1, 5, 25, 31, 101, 155, 211, 505, 775, 1055, 2525, 3131, 5275, 6541, 15655, 21311, 32705, 78275, 106555, 163525, 532775, 660641, 3303205, 16516025]

約数ペア:

[(1, 16516025), (5, 3303205), (25, 660641), (31, 532775), (101, 163525), (155, 106555), (211, 78275), (505, 32705), (775, 21311), (1055, 15655), (2525, 6541), (3131, 5275)]