19493451

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 29377920

約数和(自身を除く): 9884469

約数列:

[1, 3, 9, 31, 93, 109, 279, 327, 641, 981, 1923, 3379, 5769, 10137, 19871, 30411, 59613, 69869, 178839, 209607, 628821, 2165939, 6497817, 19493451]

約数ペア:

[(1, 19493451), (3, 6497817), (9, 2165939), (31, 628821), (93, 209607), (109, 178839), (279, 69869), (327, 59613), (641, 30411), (981, 19871), (1923, 10137), (3379, 5769)]