18997353

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 28374528

約数和(自身を除く): 9377175

約数列:

[1, 3, 9, 47, 97, 141, 291, 423, 463, 873, 1389, 4167, 4559, 13677, 21761, 41031, 44911, 65283, 134733, 195849, 404199, 2110817, 6332451, 18997353]

約数ペア:

[(1, 18997353), (3, 6332451), (9, 2110817), (47, 404199), (97, 195849), (141, 134733), (291, 65283), (423, 44911), (463, 41031), (873, 21761), (1389, 13677), (4167, 4559)]