21012607

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4073}}^1$

素因数の和:4158

約数の個数: 16

約数和(自身を含む): 26595072

約数和(自身を除く): 5582465

約数列:

[1, 7, 11, 67, 77, 469, 737, 4073, 5159, 28511, 44803, 272891, 313621, 1910237, 3001801, 21012607]

約数ペア:

[(1, 21012607), (7, 3001801), (11, 1910237), (67, 313621), (77, 272891), (469, 44803), (737, 28511), (4073, 5159)]