19403406

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{53}}^1$

素因数の和:158

約数の個数: 72

約数和(自身を含む): 47839896

約数和(自身を除く): 28436490

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 53, 66, 86, 99, 106, 129, 159, 198, 258, 318, 387, 473, 477, 583, 774, 946, 954, 1166, 1419, 1749, 1849, 2279, 2838, 3498, 3698, 4257, 4558, 5247, 5547, 6837, 8514, 10494, 11094, 13674, 16641, 20339, 20511, 25069, 33282, 40678, 41022, 50138, 61017, 75207, 97997, 122034, 150414, 183051, 195994, 225621, 293991, 366102, 451242, 587982, 881973, 1077967, 1763946, 2155934, 3233901, 6467802, 9701703, 19403406]

約数ペア:

[(1, 19403406), (2, 9701703), (3, 6467802), (6, 3233901), (9, 2155934), (11, 1763946), (18, 1077967), (22, 881973), (33, 587982), (43, 451242), (53, 366102), (66, 293991), (86, 225621), (99, 195994), (106, 183051), (129, 150414), (159, 122034), (198, 97997), (258, 75207), (318, 61017), (387, 50138), (473, 41022), (477, 40678), (583, 33282), (774, 25069), (946, 20511), (954, 20339), (1166, 16641), (1419, 13674), (1749, 11094), (1849, 10494), (2279, 8514), (2838, 6837), (3498, 5547), (3698, 5247), (4257, 4558)]