21099680110

素因数分解:

$2^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2316101}}^1$

素因数の和:2317019

約数の個数: 16

約数和(自身を含む): 38021130432

約数和(自身を除く): 16921450322

約数列:

[1, 2, 5, 10, 911, 1822, 4555, 9110, 2316101, 4632202, 11580505, 23161010, 2109968011, 4219936022, 10549840055, 21099680110]

約数ペア:

[(1, 21099680110), (2, 10549840055), (5, 4219936022), (10, 2109968011), (911, 23161010), (1822, 11580505), (4555, 4632202), (9110, 2316101)]