20405892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{130807}}^1$

素因数の和:130827

約数の個数: 24

約数和(自身を含む): 51276736

約数和(自身を除く): 30870844

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 130807, 261614, 392421, 523228, 784842, 1569684, 1700491, 3400982, 5101473, 6801964, 10202946, 20405892]

約数ペア:

[(1, 20405892), (2, 10202946), (3, 6801964), (4, 5101473), (6, 3400982), (12, 1700491), (13, 1569684), (26, 784842), (39, 523228), (52, 392421), (78, 261614), (156, 130807)]