18980559

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12479}}^1$

素因数の和:12511

約数の個数: 18

約数和(自身を含む): 29689920

約数和(自身を除く): 10709361

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12479, 37437, 112311, 162227, 486681, 1460043, 2108951, 6326853, 18980559]

約数ペア:

[(1, 18980559), (3, 6326853), (9, 2108951), (13, 1460043), (39, 486681), (117, 162227), (169, 112311), (507, 37437), (1521, 12479)]