21172732

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 44126208

約数和(自身を除く): 22953476

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 107, 148, 191, 214, 259, 382, 428, 518, 749, 764, 1036, 1337, 1498, 2674, 2996, 3959, 5348, 7067, 7918, 14134, 15836, 20437, 27713, 28268, 40874, 49469, 55426, 81748, 98938, 110852, 143059, 197876, 286118, 572236, 756169, 1512338, 3024676, 5293183, 10586366, 21172732]

約数ペア:

[(1, 21172732), (2, 10586366), (4, 5293183), (7, 3024676), (14, 1512338), (28, 756169), (37, 572236), (74, 286118), (107, 197876), (148, 143059), (191, 110852), (214, 98938), (259, 81748), (382, 55426), (428, 49469), (518, 40874), (749, 28268), (764, 27713), (1036, 20437), (1337, 15836), (1498, 14134), (2674, 7918), (2996, 7067), (3959, 5348)]