19788318

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{719}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 27386082

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 139, 198, 278, 417, 719, 834, 1251, 1438, 1529, 2157, 2502, 3058, 4314, 4587, 6471, 7909, 9174, 12942, 13761, 15818, 23727, 27522, 47454, 71181, 99941, 142362, 199882, 299823, 599646, 899469, 1099351, 1798938, 2198702, 3298053, 6596106, 9894159, 19788318]

約数ペア:

[(1, 19788318), (2, 9894159), (3, 6596106), (6, 3298053), (9, 2198702), (11, 1798938), (18, 1099351), (22, 899469), (33, 599646), (66, 299823), (99, 199882), (139, 142362), (198, 99941), (278, 71181), (417, 47454), (719, 27522), (834, 23727), (1251, 15818), (1438, 13761), (1529, 12942), (2157, 9174), (2502, 7909), (3058, 6471), (4314, 4587)]