20972601

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2213}}^1$

素因数の和:2244

約数の個数: 28

約数和(自身を含む): 33878628

約数和(自身を除く): 12906027

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2213, 3159, 6639, 9477, 19917, 28769, 59751, 86307, 179253, 258921, 537759, 776763, 1613277, 2330289, 6990867, 20972601]

約数ペア:

[(1, 20972601), (3, 6990867), (9, 2330289), (13, 1613277), (27, 776763), (39, 537759), (81, 258921), (117, 179253), (243, 86307), (351, 59751), (729, 28769), (1053, 19917), (2213, 9477), (3159, 6639)]