20389404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{242731}}^1$

素因数の和:242745

約数の個数: 24

約数和(自身を含む): 54371968

約数和(自身を除く): 33982564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 242731, 485462, 728193, 970924, 1456386, 1699117, 2912772, 3398234, 5097351, 6796468, 10194702, 20389404]

約数ペア:

[(1, 20389404), (2, 10194702), (3, 6796468), (4, 5097351), (6, 3398234), (7, 2912772), (12, 1699117), (14, 1456386), (21, 970924), (28, 728193), (42, 485462), (84, 242731)]