21650733

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 36082200

約数和(自身を除く): 14431467

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 709, 783, 1053, 1131, 2127, 2349, 3393, 6381, 9217, 10179, 19143, 20561, 27651, 30537, 57429, 61683, 82953, 185049, 248859, 267293, 555147, 746577, 801879, 1665441, 2405637, 7216911, 21650733]

約数ペア:

[(1, 21650733), (3, 7216911), (9, 2405637), (13, 1665441), (27, 801879), (29, 746577), (39, 555147), (81, 267293), (87, 248859), (117, 185049), (261, 82953), (351, 61683), (377, 57429), (709, 30537), (783, 27651), (1053, 20561), (1131, 19143), (2127, 10179), (2349, 9217), (3393, 6381)]