28204659

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1889}}^1$

素因数の和:1984

約数の個数: 32

約数和(自身を含む): 48384000

約数和(自身を除く): 20179341

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 189, 237, 553, 711, 1659, 1889, 2133, 4977, 5667, 13223, 14931, 17001, 39669, 51003, 119007, 149231, 357021, 447693, 1044617, 1343079, 3133851, 4029237, 9401553, 28204659]

約数ペア:

[(1, 28204659), (3, 9401553), (7, 4029237), (9, 3133851), (21, 1343079), (27, 1044617), (63, 447693), (79, 357021), (189, 149231), (237, 119007), (553, 51003), (711, 39669), (1659, 17001), (1889, 14931), (2133, 13223), (4977, 5667)]