21777310

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{10321}}^1$

素因数の和:10539

約数の個数: 16

約数和(自身を含む): 39388752

約数和(自身を除く): 17611442

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 10321, 20642, 51605, 103210, 2177731, 4355462, 10888655, 21777310]

約数ペア:

[(1, 21777310), (2, 10888655), (5, 4355462), (10, 2177731), (211, 103210), (422, 51605), (1055, 20642), (2110, 10321)]