18388701

素因数分解:

$3^4\times {\mathrm{379}}^1\times {\mathrm{599}}^1$

素因数の和:990

約数の個数: 20

約数和(自身を含む): 27588000

約数和(自身を除く): 9199299

約数列:

[1, 3, 9, 27, 81, 379, 599, 1137, 1797, 3411, 5391, 10233, 16173, 30699, 48519, 227021, 681063, 2043189, 6129567, 18388701]

約数ペア:

[(1, 18388701), (3, 6129567), (9, 2043189), (27, 681063), (81, 227021), (379, 48519), (599, 30699), (1137, 16173), (1797, 10233), (3411, 5391)]