21354408

素因数分解:

$2^3\times 3^3\times {\mathrm{109}}^1\times {\mathrm{907}}^1$

素因数の和:1031

約数の個数: 64

約数和(自身を含む): 59928000

約数和(自身を除く): 38573592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 109, 216, 218, 327, 436, 654, 872, 907, 981, 1308, 1814, 1962, 2616, 2721, 2943, 3628, 3924, 5442, 5886, 7256, 7848, 8163, 10884, 11772, 16326, 21768, 23544, 24489, 32652, 48978, 65304, 97956, 98863, 195912, 197726, 296589, 395452, 593178, 790904, 889767, 1186356, 1779534, 2372712, 2669301, 3559068, 5338602, 7118136, 10677204, 21354408]

約数ペア:

[(1, 21354408), (2, 10677204), (3, 7118136), (4, 5338602), (6, 3559068), (8, 2669301), (9, 2372712), (12, 1779534), (18, 1186356), (24, 889767), (27, 790904), (36, 593178), (54, 395452), (72, 296589), (108, 197726), (109, 195912), (216, 98863), (218, 97956), (327, 65304), (436, 48978), (654, 32652), (872, 24489), (907, 23544), (981, 21768), (1308, 16326), (1814, 11772), (1962, 10884), (2616, 8163), (2721, 7848), (2943, 7256), (3628, 5886), (3924, 5442)]