15639724

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1223}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 28788480

約数和(自身を除く): 13148756

約数列:

[1, 2, 4, 23, 46, 92, 139, 278, 556, 1223, 2446, 3197, 4892, 6394, 12788, 28129, 56258, 112516, 169997, 339994, 679988, 3909931, 7819862, 15639724]

約数ペア:

[(1, 15639724), (2, 7819862), (4, 3909931), (23, 679988), (46, 339994), (92, 169997), (139, 112516), (278, 56258), (556, 28129), (1223, 12788), (2446, 6394), (3197, 4892)]