28709199

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 42653520

約数和(自身を除く): 13944321

約数列:

[1, 3, 9, 53, 139, 159, 417, 433, 477, 1251, 1299, 3897, 7367, 22101, 22949, 60187, 66303, 68847, 180561, 206541, 541683, 3189911, 9569733, 28709199]

約数ペア:

[(1, 28709199), (3, 9569733), (9, 3189911), (53, 541683), (139, 206541), (159, 180561), (417, 68847), (433, 66303), (477, 60187), (1251, 22949), (1299, 22101), (3897, 7367)]