81085407

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1499}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 124320000

約数和(自身を除く): 43234593

約数列:

[1, 3, 13, 19, 39, 57, 73, 219, 247, 741, 949, 1387, 1499, 2847, 4161, 4497, 18031, 19487, 28481, 54093, 58461, 85443, 109427, 328281, 370253, 1110759, 1422551, 2079113, 4267653, 6237339, 27028469, 81085407]

約数ペア:

[(1, 81085407), (3, 27028469), (13, 6237339), (19, 4267653), (39, 2079113), (57, 1422551), (73, 1110759), (219, 370253), (247, 328281), (741, 109427), (949, 85443), (1387, 58461), (1499, 54093), (2847, 28481), (4161, 19487), (4497, 18031)]