21969045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{719}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22060395

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 679, 719, 873, 1455, 2037, 2157, 3395, 3595, 4365, 5033, 6111, 6471, 10185, 10785, 15099, 25165, 30555, 32355, 45297, 69743, 75495, 209229, 226485, 348715, 488201, 627687, 1046145, 1464603, 2441005, 3138435, 4393809, 7323015, 21969045]

約数ペア:

[(1, 21969045), (3, 7323015), (5, 4393809), (7, 3138435), (9, 2441005), (15, 1464603), (21, 1046145), (35, 627687), (45, 488201), (63, 348715), (97, 226485), (105, 209229), (291, 75495), (315, 69743), (485, 45297), (679, 32355), (719, 30555), (873, 25165), (1455, 15099), (2037, 10785), (2157, 10185), (3395, 6471), (3595, 6111), (4365, 5033)]