21265250

素因数分解:

$2^1\times 5^3\times {\mathrm{85061}}^1$

素因数の和:85078

約数の個数: 16

約数和(自身を含む): 39809016

約数和(自身を除く): 18543766

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 85061, 170122, 425305, 850610, 2126525, 4253050, 10632625, 21265250]

約数ペア:

[(1, 21265250), (2, 10632625), (5, 4253050), (10, 2126525), (25, 850610), (50, 425305), (125, 170122), (250, 85061)]