19886013

素因数分解:

$3^3\times 7^2\times {\mathrm{15031}}^1$

素因数の和:15054

約数の個数: 24

約数和(自身を含む): 34272960

約数和(自身を除く): 14386947

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15031, 45093, 105217, 135279, 315651, 405837, 736519, 946953, 2209557, 2840859, 6628671, 19886013]

約数ペア:

[(1, 19886013), (3, 6628671), (7, 2840859), (9, 2209557), (21, 946953), (27, 736519), (49, 405837), (63, 315651), (147, 135279), (189, 105217), (441, 45093), (1323, 15031)]