21494570

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 39747456

約数和(自身を除く): 18252886

約数列:

[1, 2, 5, 10, 61, 122, 167, 211, 305, 334, 422, 610, 835, 1055, 1670, 2110, 10187, 12871, 20374, 25742, 35237, 50935, 64355, 70474, 101870, 128710, 176185, 352370, 2149457, 4298914, 10747285, 21494570]

約数ペア:

[(1, 21494570), (2, 10747285), (5, 4298914), (10, 2149457), (61, 352370), (122, 176185), (167, 128710), (211, 101870), (305, 70474), (334, 64355), (422, 50935), (610, 35237), (835, 25742), (1055, 20374), (1670, 12871), (2110, 10187)]