21054550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{38281}}^1$

素因数の和:38304

約数の個数: 24

約数和(自身を含む): 42722712

約数和(自身を除く): 21668162

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 38281, 76562, 191405, 382810, 421091, 842182, 957025, 1914050, 2105455, 4210910, 10527275, 21054550]

約数ペア:

[(1, 21054550), (2, 10527275), (5, 4210910), (10, 2105455), (11, 1914050), (22, 957025), (25, 842182), (50, 421091), (55, 382810), (110, 191405), (275, 76562), (550, 38281)]