19992904

素因数分解:

$2^3\times {\mathrm{1063}}^1\times {\mathrm{2351}}^1$

素因数の和:3420

約数の個数: 16

約数和(自身を含む): 37537920

約数和(自身を除く): 17545016

約数列:

[1, 2, 4, 8, 1063, 2126, 2351, 4252, 4702, 8504, 9404, 18808, 2499113, 4998226, 9996452, 19992904]

約数ペア:

[(1, 19992904), (2, 9996452), (4, 4998226), (8, 2499113), (1063, 18808), (2126, 9404), (2351, 8504), (4252, 4702)]