28903161

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{677}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 46863360

約数和(自身を除く): 17960199

約数列:

[1, 3, 7, 19, 21, 57, 107, 133, 321, 399, 677, 749, 2031, 2033, 2247, 4739, 6099, 12863, 14217, 14231, 38589, 42693, 72439, 90041, 217317, 270123, 507073, 1376341, 1521219, 4129023, 9634387, 28903161]

約数ペア:

[(1, 28903161), (3, 9634387), (7, 4129023), (19, 1521219), (21, 1376341), (57, 507073), (107, 270123), (133, 217317), (321, 90041), (399, 72439), (677, 42693), (749, 38589), (2031, 14231), (2033, 14217), (2247, 12863), (4739, 6099)]