28685013

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 45588480

約数和(自身を除く): 16903467

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 317, 417, 651, 951, 973, 2219, 2919, 4309, 6657, 9827, 12927, 29481, 30163, 44063, 68789, 90489, 132189, 206367, 308441, 925323, 1365953, 4097859, 9561671, 28685013]

約数ペア:

[(1, 28685013), (3, 9561671), (7, 4097859), (21, 1365953), (31, 925323), (93, 308441), (139, 206367), (217, 132189), (317, 90489), (417, 68789), (651, 44063), (951, 30163), (973, 29481), (2219, 12927), (2919, 9827), (4309, 6657)]