18515822

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 31987872

約数和(自身を除く): 13472050

約数列:

[1, 2, 13, 17, 26, 34, 163, 221, 257, 326, 442, 514, 2119, 2771, 3341, 4238, 4369, 5542, 6682, 8738, 36023, 41891, 56797, 72046, 83782, 113594, 544583, 712147, 1089166, 1424294, 9257911, 18515822]

約数ペア:

[(1, 18515822), (2, 9257911), (13, 1424294), (17, 1089166), (26, 712147), (34, 544583), (163, 113594), (221, 83782), (257, 72046), (326, 56797), (442, 41891), (514, 36023), (2119, 8738), (2771, 6682), (3341, 5542), (4238, 4369)]