20279091

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 33488640

約数和(自身を除く): 13209549

約数列:

[1, 3, 7, 21, 29, 49, 67, 71, 87, 147, 201, 203, 213, 469, 497, 609, 1407, 1421, 1491, 1943, 2059, 3283, 3479, 4263, 4757, 5829, 6177, 9849, 10437, 13601, 14271, 14413, 33299, 40803, 43239, 95207, 99897, 100891, 137953, 233093, 285621, 302673, 413859, 699279, 965671, 2897013, 6759697, 20279091]

約数ペア:

[(1, 20279091), (3, 6759697), (7, 2897013), (21, 965671), (29, 699279), (49, 413859), (67, 302673), (71, 285621), (87, 233093), (147, 137953), (201, 100891), (203, 99897), (213, 95207), (469, 43239), (497, 40803), (609, 33299), (1407, 14413), (1421, 14271), (1491, 13601), (1943, 10437), (2059, 9849), (3283, 6177), (3479, 5829), (4263, 4757)]