19982138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4073}}^1$

素因数の和:4309

約数の個数: 16

約数和(自身を含む): 32852736

約数和(自身を除く): 12870598

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4073, 4906, 8146, 44803, 89606, 908279, 1816558, 9991069, 19982138]

約数ペア:

[(1, 19982138), (2, 9991069), (11, 1816558), (22, 908279), (223, 89606), (446, 44803), (2453, 8146), (4073, 4906)]