21100833

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13873}}^1$

素因数の和:13905

約数の個数: 18

約数和(自身を含む): 33006246

約数和(自身を除く): 11905413

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13873, 41619, 124857, 180349, 541047, 1623141, 2344537, 7033611, 21100833]

約数ペア:

[(1, 21100833), (3, 7033611), (9, 2344537), (13, 1623141), (39, 541047), (117, 180349), (169, 124857), (507, 41619), (1521, 13873)]