20654326

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1889}}^1$

素因数の和:1980

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18536714

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 1889, 3778, 5467, 10934, 13223, 20779, 26446, 41558, 134119, 145453, 268238, 290906, 938833, 1475309, 1877666, 2950618, 10327163, 20654326]

約数ペア:

[(1, 20654326), (2, 10327163), (7, 2950618), (11, 1877666), (14, 1475309), (22, 938833), (71, 290906), (77, 268238), (142, 145453), (154, 134119), (497, 41558), (781, 26446), (994, 20779), (1562, 13223), (1889, 10934), (3778, 5467)]