21123732

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{251473}}^1$

素因数の和:251487

約数の個数: 24

約数和(自身を含む): 56330176

約数和(自身を除く): 35206444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 251473, 502946, 754419, 1005892, 1508838, 1760311, 3017676, 3520622, 5280933, 7041244, 10561866, 21123732]

約数ペア:

[(1, 21123732), (2, 10561866), (3, 7041244), (4, 5280933), (6, 3520622), (7, 3017676), (12, 1760311), (14, 1508838), (21, 1005892), (28, 754419), (42, 502946), (84, 251473)]