17931808

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 36673560

約数和(自身を除く): 18741752

約数列:

[1, 2, 4, 8, 16, 32, 53, 97, 106, 109, 194, 212, 218, 388, 424, 436, 776, 848, 872, 1552, 1696, 1744, 3104, 3488, 5141, 5777, 10282, 10573, 11554, 20564, 21146, 23108, 41128, 42292, 46216, 82256, 84584, 92432, 164512, 169168, 184864, 338336, 560369, 1120738, 2241476, 4482952, 8965904, 17931808]

約数ペア:

[(1, 17931808), (2, 8965904), (4, 4482952), (8, 2241476), (16, 1120738), (32, 560369), (53, 338336), (97, 184864), (106, 169168), (109, 164512), (194, 92432), (212, 84584), (218, 82256), (388, 46216), (424, 42292), (436, 41128), (776, 23108), (848, 21146), (872, 20564), (1552, 11554), (1696, 10573), (1744, 10282), (3104, 5777), (3488, 5141)]