28900809

素因数分解:

$3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1621}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 47907392

約数和(自身を除く): 19006583

約数列:

[1, 3, 7, 9, 21, 63, 283, 849, 1621, 1981, 2547, 4863, 5943, 11347, 14589, 17829, 34041, 102123, 458743, 1376229, 3211201, 4128687, 9633603, 28900809]

約数ペア:

[(1, 28900809), (3, 9633603), (7, 4128687), (9, 3211201), (21, 1376229), (63, 458743), (283, 102123), (849, 34041), (1621, 17829), (1981, 14589), (2547, 11347), (4863, 5943)]