28178379

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 41633280

約数和(自身を除く): 13454901

約数列:

[1, 3, 9, 89, 127, 267, 277, 381, 801, 831, 1143, 2493, 11303, 24653, 33909, 35179, 73959, 101727, 105537, 221877, 316611, 3130931, 9392793, 28178379]

約数ペア:

[(1, 28178379), (3, 9392793), (9, 3130931), (89, 316611), (127, 221877), (267, 105537), (277, 101727), (381, 73959), (801, 35179), (831, 33909), (1143, 24653), (2493, 11303)]