20584172

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31963}}^1$

素因数の和:31997

約数の個数: 24

約数和(自身を含む): 42959616

約数和(自身を除く): 22375444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31963, 63926, 127852, 223741, 447482, 735149, 894964, 1470298, 2940596, 5146043, 10292086, 20584172]

約数ペア:

[(1, 20584172), (2, 10292086), (4, 5146043), (7, 2940596), (14, 1470298), (23, 894964), (28, 735149), (46, 447482), (92, 223741), (161, 127852), (322, 63926), (644, 31963)]