28961115

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{829}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 49481280

約数和(自身を除く): 20520165

約数列:

[1, 3, 5, 15, 17, 51, 85, 137, 255, 411, 685, 829, 2055, 2329, 2487, 4145, 6987, 11645, 12435, 14093, 34935, 42279, 70465, 113573, 211395, 340719, 567865, 1703595, 1930741, 5792223, 9653705, 28961115]

約数ペア:

[(1, 28961115), (3, 9653705), (5, 5792223), (15, 1930741), (17, 1703595), (51, 567865), (85, 340719), (137, 211395), (255, 113573), (411, 70465), (685, 42279), (829, 34935), (2055, 14093), (2329, 12435), (2487, 11645), (4145, 6987)]