18644571

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4007}}^1$

素因数の和:4071

約数の個数: 24

約数和(自身を含む): 30011904

約数和(自身を除く): 11367333

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 423, 517, 1551, 4007, 4653, 12021, 36063, 44077, 132231, 188329, 396693, 564987, 1694961, 2071619, 6214857, 18644571]

約数ペア:

[(1, 18644571), (3, 6214857), (9, 2071619), (11, 1694961), (33, 564987), (47, 396693), (99, 188329), (141, 132231), (423, 44077), (517, 36063), (1551, 12021), (4007, 4653)]