28890303

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20021}}^1$

素因数の和:20074

約数の個数: 16

約数和(自身を含む): 42606816

約数和(自身を除く): 13716513

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 20021, 60063, 260273, 740777, 780819, 2222331, 9630101, 28890303]

約数ペア:

[(1, 28890303), (3, 9630101), (13, 2222331), (37, 780819), (39, 740777), (111, 260273), (481, 60063), (1443, 20021)]