28709715

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 47379456

約数和(自身を除く): 18669741

約数列:

[1, 3, 5, 15, 47, 141, 193, 211, 235, 579, 633, 705, 965, 1055, 2895, 3165, 9071, 9917, 27213, 29751, 40723, 45355, 49585, 122169, 136065, 148755, 203615, 610845, 1913981, 5741943, 9569905, 28709715]

約数ペア:

[(1, 28709715), (3, 9569905), (5, 5741943), (15, 1913981), (47, 610845), (141, 203615), (193, 148755), (211, 136065), (235, 122169), (579, 49585), (633, 45355), (705, 40723), (965, 29751), (1055, 27213), (2895, 9917), (3165, 9071)]