21386568

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127301}}^1$

素因数の和:127317

約数の個数: 32

約数和(自身を含む): 61104960

約数和(自身を除く): 39718392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127301, 254602, 381903, 509204, 763806, 891107, 1018408, 1527612, 1782214, 2673321, 3055224, 3564428, 5346642, 7128856, 10693284, 21386568]

約数ペア:

[(1, 21386568), (2, 10693284), (3, 7128856), (4, 5346642), (6, 3564428), (7, 3055224), (8, 2673321), (12, 1782214), (14, 1527612), (21, 1018408), (24, 891107), (28, 763806), (42, 509204), (56, 381903), (84, 254602), (168, 127301)]