18275985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4463}}^1$

素因数の和:4494

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 20721519

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4463, 13389, 22315, 31241, 40167, 58019, 66945, 93723, 156205, 174057, 200835, 281169, 290095, 406133, 468615, 522171, 870285, 1218399, 1405845, 2030665, 2610855, 3655197, 6091995, 18275985]

約数ペア:

[(1, 18275985), (3, 6091995), (5, 3655197), (7, 2610855), (9, 2030665), (13, 1405845), (15, 1218399), (21, 870285), (35, 522171), (39, 468615), (45, 406133), (63, 290095), (65, 281169), (91, 200835), (105, 174057), (117, 156205), (195, 93723), (273, 66945), (315, 58019), (455, 40167), (585, 31241), (819, 22315), (1365, 13389), (4095, 4463)]