28881021

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1759}}^1$

素因数の和:2196

約数の個数: 16

約数和(自身を含む): 41592320

約数和(自身を除く): 12711299

約数列:

[1, 3, 13, 39, 421, 1263, 1759, 5277, 5473, 16419, 22867, 68601, 740539, 2221617, 9627007, 28881021]

約数ペア:

[(1, 28881021), (3, 9627007), (13, 2221617), (39, 740539), (421, 68601), (1263, 22867), (1759, 16419), (5277, 5473)]