19776218

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{457}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 37196928

約数和(自身を除く): 17420710

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 281, 457, 562, 914, 1967, 3091, 3199, 3934, 5027, 6182, 6398, 10054, 21637, 35189, 43274, 70378, 128417, 256834, 898919, 1412587, 1797838, 2825174, 9888109, 19776218]

約数ペア:

[(1, 19776218), (2, 9888109), (7, 2825174), (11, 1797838), (14, 1412587), (22, 898919), (77, 256834), (154, 128417), (281, 70378), (457, 43274), (562, 35189), (914, 21637), (1967, 10054), (3091, 6398), (3199, 6182), (3934, 5027)]