21011913

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59863}}^1$

素因数の和:59885

約数の個数: 16

約数和(自身を含む): 33523840

約数和(自身を除く): 12511927

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59863, 179589, 538767, 778219, 1616301, 2334657, 7003971, 21011913]

約数ペア:

[(1, 21011913), (3, 7003971), (9, 2334657), (13, 1616301), (27, 778219), (39, 538767), (117, 179589), (351, 59863)]