20405868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{242927}}^1$

素因数の和:242941

約数の個数: 24

約数和(自身を含む): 54415872

約数和(自身を除く): 34010004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 242927, 485854, 728781, 971708, 1457562, 1700489, 2915124, 3400978, 5101467, 6801956, 10202934, 20405868]

約数ペア:

[(1, 20405868), (2, 10202934), (3, 6801956), (4, 5101467), (6, 3400978), (7, 2915124), (12, 1700489), (14, 1457562), (21, 971708), (28, 728781), (42, 485854), (84, 242927)]