28027233

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{569}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 43778280

約数和(自身を除く): 15751047

約数列:

[1, 3, 9, 13, 39, 117, 421, 569, 1263, 1707, 3789, 5121, 5473, 7397, 16419, 22191, 49257, 66573, 239549, 718647, 2155941, 3114137, 9342411, 28027233]

約数ペア:

[(1, 28027233), (3, 9342411), (9, 3114137), (13, 2155941), (39, 718647), (117, 239549), (421, 66573), (569, 49257), (1263, 22191), (1707, 16419), (3789, 7397), (5121, 5473)]