13998005

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 20072448

約数和(自身を除く): 6074443

約数列:

[1, 5, 7, 35, 43, 71, 131, 215, 301, 355, 497, 655, 917, 1505, 2485, 3053, 4585, 5633, 9301, 15265, 21371, 28165, 39431, 46505, 65107, 106855, 197155, 325535, 399943, 1999715, 2799601, 13998005]

約数ペア:

[(1, 13998005), (5, 2799601), (7, 1999715), (35, 399943), (43, 325535), (71, 197155), (131, 106855), (215, 65107), (301, 46505), (355, 39431), (497, 28165), (655, 21371), (917, 15265), (1505, 9301), (2485, 5633), (3053, 4585)]