20813604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247781}}^1$

素因数の和:247795

約数の個数: 24

約数和(自身を含む): 55503168

約数和(自身を除く): 34689564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247781, 495562, 743343, 991124, 1486686, 1734467, 2973372, 3468934, 5203401, 6937868, 10406802, 20813604]

約数ペア:

[(1, 20813604), (2, 10406802), (3, 6937868), (4, 5203401), (6, 3468934), (7, 2973372), (12, 1734467), (14, 1486686), (21, 991124), (28, 743343), (42, 495562), (84, 247781)]