28263885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{751}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 49018368

約数和(自身を除く): 20754483

約数列:

[1, 3, 5, 13, 15, 39, 65, 193, 195, 579, 751, 965, 2253, 2509, 2895, 3755, 7527, 9763, 11265, 12545, 29289, 37635, 48815, 144943, 146445, 434829, 724715, 1884259, 2174145, 5652777, 9421295, 28263885]

約数ペア:

[(1, 28263885), (3, 9421295), (5, 5652777), (13, 2174145), (15, 1884259), (39, 724715), (65, 434829), (193, 146445), (195, 144943), (579, 48815), (751, 37635), (965, 29289), (2253, 12545), (2509, 11265), (2895, 9763), (3755, 7527)]