20475686

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4289}}^1$

素因数の和:4340

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 19060954

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 2387, 4289, 4774, 8578, 30023, 47179, 60046, 94358, 132959, 265918, 330253, 660506, 930713, 1462549, 1861426, 2925098, 10237843, 20475686]

約数ペア:

[(1, 20475686), (2, 10237843), (7, 2925098), (11, 1861426), (14, 1462549), (22, 930713), (31, 660506), (62, 330253), (77, 265918), (154, 132959), (217, 94358), (341, 60046), (434, 47179), (682, 30023), (2387, 8578), (4289, 4774)]