28004715

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13241}}^1$

素因数の和:13299

約数の個数: 24

約数和(自身を含む): 49578048

約数和(自身を除く): 21573333

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 13241, 39723, 66205, 119169, 198615, 595845, 622327, 1866981, 3111635, 5600943, 9334905, 28004715]

約数ペア:

[(1, 28004715), (3, 9334905), (5, 5600943), (9, 3111635), (15, 1866981), (45, 622327), (47, 595845), (141, 198615), (235, 119169), (423, 66205), (705, 39723), (2115, 13241)]