28100319

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31327}}^1$

素因数の和:31366

約数の個数: 16

約数和(自身を含む): 42104832

約数和(自身を除く): 14004513

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 31327, 93981, 407251, 720521, 1221753, 2161563, 9366773, 28100319]

約数ペア:

[(1, 28100319), (3, 9366773), (13, 2161563), (23, 1221753), (39, 720521), (69, 407251), (299, 93981), (897, 31327)]