21144046

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 42172416

約数和(自身を除く): 21028370

約数列:

[1, 2, 7, 11, 14, 22, 31, 43, 62, 77, 86, 103, 154, 206, 217, 301, 341, 434, 473, 602, 682, 721, 946, 1133, 1333, 1442, 2266, 2387, 2666, 3193, 3311, 4429, 4774, 6386, 6622, 7931, 8858, 9331, 14663, 15862, 18662, 22351, 29326, 31003, 35123, 44702, 48719, 62006, 70246, 97438, 102641, 137299, 205282, 245861, 274598, 341033, 491722, 682066, 961093, 1510289, 1922186, 3020578, 10572023, 21144046]

約数ペア:

[(1, 21144046), (2, 10572023), (7, 3020578), (11, 1922186), (14, 1510289), (22, 961093), (31, 682066), (43, 491722), (62, 341033), (77, 274598), (86, 245861), (103, 205282), (154, 137299), (206, 102641), (217, 97438), (301, 70246), (341, 62006), (434, 48719), (473, 44702), (602, 35123), (682, 31003), (721, 29326), (946, 22351), (1133, 18662), (1333, 15862), (1442, 14663), (2266, 9331), (2387, 8858), (2666, 7931), (3193, 6622), (3311, 6386), (4429, 4774)]