21903063

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{80231}}^1$

素因数の和:80254

約数の個数: 16

約数和(自身を含む): 35943936

約数和(自身を除く): 14040873

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 80231, 240693, 561617, 1043003, 1684851, 3129009, 7301021, 21903063]

約数ペア:

[(1, 21903063), (3, 7301021), (7, 3129009), (13, 1684851), (21, 1043003), (39, 561617), (91, 240693), (273, 80231)]