20804518

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4937}}^1$

素因数の和:4996

約数の個数: 24

約数和(自身を含む): 37153512

約数和(自身を除く): 16348994

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 4937, 9874, 34559, 69118, 212291, 241913, 424582, 483826, 1486037, 2972074, 10402259, 20804518]

約数ペア:

[(1, 20804518), (2, 10402259), (7, 2972074), (14, 1486037), (43, 483826), (49, 424582), (86, 241913), (98, 212291), (301, 69118), (602, 34559), (2107, 9874), (4214, 4937)]