15981251

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 20224512

約数和(自身を除く): 4243261

約数列:

[1, 11, 13, 23, 43, 113, 143, 253, 299, 473, 559, 989, 1243, 1469, 2599, 3289, 4859, 6149, 10879, 12857, 16159, 28589, 33787, 53449, 63167, 111757, 141427, 371657, 694837, 1229327, 1452841, 15981251]

約数ペア:

[(1, 15981251), (11, 1452841), (13, 1229327), (23, 694837), (43, 371657), (113, 141427), (143, 111757), (253, 63167), (299, 53449), (473, 33787), (559, 28589), (989, 16159), (1243, 12857), (1469, 10879), (2599, 6149), (3289, 4859)]