18238451

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 23352672

約数和(自身を除く): 5114221

約数列:

[1, 7, 11, 61, 77, 121, 353, 427, 671, 847, 2471, 3883, 4697, 7381, 21533, 27181, 42713, 51667, 150731, 236863, 298991, 1658041, 2605493, 18238451]

約数ペア:

[(1, 18238451), (7, 2605493), (11, 1658041), (61, 298991), (77, 236863), (121, 150731), (353, 51667), (427, 42713), (671, 27181), (847, 21533), (2471, 7381), (3883, 4697)]