15121509

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 22708224

約数和(自身を除く): 7586715

約数列:

[1, 3, 13, 39, 43, 71, 127, 129, 213, 381, 559, 923, 1651, 1677, 2769, 3053, 4953, 5461, 9017, 9159, 16383, 27051, 39689, 70993, 117221, 119067, 212979, 351663, 387731, 1163193, 5040503, 15121509]

約数ペア:

[(1, 15121509), (3, 5040503), (13, 1163193), (39, 387731), (43, 351663), (71, 212979), (127, 119067), (129, 117221), (213, 70993), (381, 39689), (559, 27051), (923, 16383), (1651, 9159), (1677, 9017), (2769, 5461), (3053, 4953)]