18942861

素因数分解:

$3^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 11297139

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 343, 449, 861, 1029, 1347, 2009, 3143, 6027, 9429, 14063, 18409, 22001, 42189, 55227, 66003, 128863, 154007, 386589, 462021, 902041, 2706123, 6314287, 18942861]

約数ペア:

[(1, 18942861), (3, 6314287), (7, 2706123), (21, 902041), (41, 462021), (49, 386589), (123, 154007), (147, 128863), (287, 66003), (343, 55227), (449, 42189), (861, 22001), (1029, 18409), (1347, 14063), (2009, 9429), (3143, 6027)]