28316421

素因数分解:

$3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1709}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 46949760

約数和(自身を除く): 18633339

約数列:

[1, 3, 7, 9, 21, 63, 263, 789, 1709, 1841, 2367, 5127, 5523, 11963, 15381, 16569, 35889, 107667, 449467, 1348401, 3146269, 4045203, 9438807, 28316421]

約数ペア:

[(1, 28316421), (3, 9438807), (7, 4045203), (9, 3146269), (21, 1348401), (63, 449467), (263, 107667), (789, 35889), (1709, 16569), (1841, 15381), (2367, 11963), (5127, 5523)]