28132221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23269}}^1$

素因数の和:23316

約数の個数: 16

約数和(自身を含む): 41699840

約数和(自身を除く): 13567619

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23269, 69807, 302497, 721339, 907491, 2164017, 9377407, 28132221]

約数ペア:

[(1, 28132221), (3, 9377407), (13, 2164017), (31, 907491), (39, 721339), (93, 302497), (403, 69807), (1209, 23269)]