19428813

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1997}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 29922048

約数和(自身を除く): 10493235

約数列:

[1, 3, 9, 23, 47, 69, 141, 207, 423, 1081, 1997, 3243, 5991, 9729, 17973, 45931, 93859, 137793, 281577, 413379, 844731, 2158757, 6476271, 19428813]

約数ペア:

[(1, 19428813), (3, 6476271), (9, 2158757), (23, 844731), (47, 413379), (69, 281577), (141, 137793), (207, 93859), (423, 45931), (1081, 17973), (1997, 9729), (3243, 5991)]