81789219

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{419}}^1$

素因数の和:512

約数の個数: 36

約数和(自身を含む): 126813960

約数和(自身を除く): 45024741

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 419, 529, 943, 1257, 1587, 2829, 3771, 4761, 8487, 9637, 17179, 21689, 28911, 51537, 65067, 86733, 154611, 195201, 221651, 395117, 664953, 1185351, 1994859, 3556053, 9087691, 27263073, 81789219]

約数ペア:

[(1, 81789219), (3, 27263073), (9, 9087691), (23, 3556053), (41, 1994859), (69, 1185351), (123, 664953), (207, 395117), (369, 221651), (419, 195201), (529, 154611), (943, 86733), (1257, 65067), (1587, 51537), (2829, 28911), (3771, 21689), (4761, 17179), (8487, 9637)]