19706409

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{2153}}^1$

素因数の和:2278

約数の個数: 20

約数和(自身を含む): 29712276

約数和(自身を除く): 10005867

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 2153, 3051, 6459, 9153, 19377, 58131, 174393, 243289, 729867, 2189601, 6568803, 19706409]

約数ペア:

[(1, 19706409), (3, 6568803), (9, 2189601), (27, 729867), (81, 243289), (113, 174393), (339, 58131), (1017, 19377), (2153, 9153), (3051, 6459)]