13720343

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 18345600

約数和(自身を除く): 4625257

約数列:

[1, 7, 13, 17, 49, 91, 119, 181, 221, 343, 637, 833, 1267, 1547, 2353, 3077, 4459, 5831, 8869, 10829, 16471, 21539, 40001, 62083, 75803, 115297, 150773, 280007, 807079, 1055411, 1960049, 13720343]

約数ペア:

[(1, 13720343), (7, 1960049), (13, 1055411), (17, 807079), (49, 280007), (91, 150773), (119, 115297), (181, 75803), (221, 62083), (343, 40001), (637, 21539), (833, 16471), (1267, 10829), (1547, 8869), (2353, 5831), (3077, 4459)]