28103715

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4493}}^1$

素因数の和:4643

約数の個数: 24

約数和(自身を含む): 49074480

約数和(自身を除く): 20970765

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 4493, 6255, 13479, 22465, 40437, 67395, 202185, 624527, 1873581, 3122635, 5620743, 9367905, 28103715]

約数ペア:

[(1, 28103715), (3, 9367905), (5, 5620743), (9, 3122635), (15, 1873581), (45, 624527), (139, 202185), (417, 67395), (695, 40437), (1251, 22465), (2085, 13479), (4493, 6255)]