28268253

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 44172128

約数和(自身を除く): 15903875

約数列:

[1, 3, 9, 13, 39, 117, 307, 787, 921, 2361, 2763, 3991, 7083, 10231, 11973, 30693, 35919, 92079, 241609, 724827, 2174481, 3140917, 9422751, 28268253]

約数ペア:

[(1, 28268253), (3, 9422751), (9, 3140917), (13, 2174481), (39, 724827), (117, 241609), (307, 92079), (787, 35919), (921, 30693), (2361, 11973), (2763, 10231), (3991, 7083)]