20491352

素因数分解:

$2^3\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1321}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 44101920

約数和(自身を除く): 23610568

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 277, 554, 1108, 1321, 1939, 2216, 2642, 3878, 5284, 7756, 9247, 10568, 15512, 18494, 36988, 73976, 365917, 731834, 1463668, 2561419, 2927336, 5122838, 10245676, 20491352]

約数ペア:

[(1, 20491352), (2, 10245676), (4, 5122838), (7, 2927336), (8, 2561419), (14, 1463668), (28, 731834), (56, 365917), (277, 73976), (554, 36988), (1108, 18494), (1321, 15512), (1939, 10568), (2216, 9247), (2642, 7756), (3878, 5284)]