20850005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1627}}^1$

素因数の和:1876

約数の個数: 16

約数和(自身を含む): 27428544

約数和(自身を除く): 6578539

約数列:

[1, 5, 11, 55, 233, 1165, 1627, 2563, 8135, 12815, 17897, 89485, 379091, 1895455, 4170001, 20850005]

約数ペア:

[(1, 20850005), (5, 4170001), (11, 1895455), (55, 379091), (233, 89485), (1165, 17897), (1627, 12815), (2563, 8135)]