28745379

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{18899}}^1$

素因数の和:18931

約数の個数: 18

約数和(自身を含む): 44963100

約数和(自身を除く): 16217721

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 18899, 56697, 170091, 245687, 737061, 2211183, 3193931, 9581793, 28745379]

約数ペア:

[(1, 28745379), (3, 9581793), (9, 3193931), (13, 2211183), (39, 737061), (117, 245687), (169, 170091), (507, 56697), (1521, 18899)]