23521185

素因数分解:

$3^9\times 5^1\times {\mathrm{239}}^1$

素因数の和:271

約数の個数: 40

約数和(自身を含む): 42514560

約数和(自身を除く): 18993375

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 239, 243, 405, 717, 729, 1195, 1215, 2151, 2187, 3585, 3645, 6453, 6561, 10755, 10935, 19359, 19683, 32265, 32805, 58077, 96795, 98415, 174231, 290385, 522693, 871155, 1568079, 2613465, 4704237, 7840395, 23521185]

約数ペア:

[(1, 23521185), (3, 7840395), (5, 4704237), (9, 2613465), (15, 1568079), (27, 871155), (45, 522693), (81, 290385), (135, 174231), (239, 98415), (243, 96795), (405, 58077), (717, 32805), (729, 32265), (1195, 19683), (1215, 19359), (2151, 10935), (2187, 10755), (3585, 6561), (3645, 6453)]