19647536

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10867}}^1$

素因数の和:10988

約数の個数: 20

約数和(自身を含む): 38407512

約数和(自身を除く): 18759976

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10867, 21734, 43468, 86936, 173872, 1227971, 2455942, 4911884, 9823768, 19647536]

約数ペア:

[(1, 19647536), (2, 9823768), (4, 4911884), (8, 2455942), (16, 1227971), (113, 173872), (226, 86936), (452, 43468), (904, 21734), (1808, 10867)]