18990315

素因数分解:

$3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{863}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 15016725

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 163, 489, 815, 863, 1467, 2445, 2589, 4315, 4401, 7335, 7767, 12945, 22005, 23301, 38835, 116505, 140669, 422007, 703345, 1266021, 2110035, 3798063, 6330105, 18990315]

約数ペア:

[(1, 18990315), (3, 6330105), (5, 3798063), (9, 2110035), (15, 1266021), (27, 703345), (45, 422007), (135, 140669), (163, 116505), (489, 38835), (815, 23301), (863, 22005), (1467, 12945), (2445, 7767), (2589, 7335), (4315, 4401)]