81263169

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 131691560

約数和(自身を除く): 50428391

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 229, 337, 351, 687, 1011, 1053, 2061, 2977, 3033, 4381, 6183, 8931, 9099, 13143, 18549, 26793, 27297, 39429, 77173, 80379, 118287, 231519, 241137, 354861, 694557, 1003249, 2083671, 3009747, 6251013, 9029241, 27087723, 81263169]

約数ペア:

[(1, 81263169), (3, 27087723), (9, 9029241), (13, 6251013), (27, 3009747), (39, 2083671), (81, 1003249), (117, 694557), (229, 354861), (337, 241137), (351, 231519), (687, 118287), (1011, 80379), (1053, 77173), (2061, 39429), (2977, 27297), (3033, 26793), (4381, 18549), (6183, 13143), (8931, 9099)]