18021375

素因数分解:

$3^2\times 5^3\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 33048288

約数和(自身を除く): 15026913

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 125, 193, 225, 249, 375, 415, 579, 747, 965, 1125, 1245, 1737, 2075, 2895, 3735, 4825, 6225, 8685, 10375, 14475, 16019, 18675, 24125, 31125, 43425, 48057, 72375, 80095, 93375, 144171, 217125, 240285, 400475, 720855, 1201425, 2002375, 3604275, 6007125, 18021375]

約数ペア:

[(1, 18021375), (3, 6007125), (5, 3604275), (9, 2002375), (15, 1201425), (25, 720855), (45, 400475), (75, 240285), (83, 217125), (125, 144171), (193, 93375), (225, 80095), (249, 72375), (375, 48057), (415, 43425), (579, 31125), (747, 24125), (965, 18675), (1125, 16019), (1245, 14475), (1737, 10375), (2075, 8685), (2895, 6225), (3735, 4825)]