21069886

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{4447}}^1$

素因数の和:4575

約数の個数: 16

約数和(自身を含む): 33306624

約数和(自身を除く): 12236738

約数列:

[1, 2, 23, 46, 103, 206, 2369, 4447, 4738, 8894, 102281, 204562, 458041, 916082, 10534943, 21069886]

約数ペア:

[(1, 21069886), (2, 10534943), (23, 916082), (46, 458041), (103, 204562), (206, 102281), (2369, 8894), (4447, 4738)]