18480189

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 30607360

約数和(自身を除く): 12127171

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 487, 973, 1461, 1807, 2919, 3409, 5421, 6331, 10227, 12649, 18993, 37947, 44317, 67693, 132951, 203079, 473851, 880009, 1421553, 2640027, 6160063, 18480189]

約数ペア:

[(1, 18480189), (3, 6160063), (7, 2640027), (13, 1421553), (21, 880009), (39, 473851), (91, 203079), (139, 132951), (273, 67693), (417, 44317), (487, 37947), (973, 18993), (1461, 12649), (1807, 10227), (2919, 6331), (3409, 5421)]