18873595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{991}}^1$

素因数の和:1302

約数の個数: 16

約数和(自身を含む): 24498432

約数和(自身を除く): 5624837

約数列:

[1, 5, 13, 65, 293, 991, 1465, 3809, 4955, 12883, 19045, 64415, 290363, 1451815, 3774719, 18873595]

約数ペア:

[(1, 18873595), (5, 3774719), (13, 1451815), (65, 290363), (293, 64415), (991, 19045), (1465, 12883), (3809, 4955)]