21836958

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 53028864

約数和(自身を除く): 31191906

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 31, 33, 39, 62, 66, 78, 93, 143, 186, 286, 341, 403, 429, 682, 806, 821, 858, 1023, 1209, 1642, 2046, 2418, 2463, 4433, 4926, 8866, 9031, 10673, 13299, 18062, 21346, 25451, 26598, 27093, 32019, 50902, 54186, 64038, 76353, 117403, 152706, 234806, 279961, 330863, 352209, 559922, 661726, 704418, 839883, 992589, 1679766, 1985178, 3639493, 7278986, 10918479, 21836958]

約数ペア:

[(1, 21836958), (2, 10918479), (3, 7278986), (6, 3639493), (11, 1985178), (13, 1679766), (22, 992589), (26, 839883), (31, 704418), (33, 661726), (39, 559922), (62, 352209), (66, 330863), (78, 279961), (93, 234806), (143, 152706), (186, 117403), (286, 76353), (341, 64038), (403, 54186), (429, 50902), (682, 32019), (806, 27093), (821, 26598), (858, 25451), (1023, 21346), (1209, 18062), (1642, 13299), (2046, 10673), (2418, 9031), (2463, 8866), (4433, 4926)]