19882478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{97}}^1$

素因数の和:150

約数の個数: 40

約数和(自身を含む): 37878960

約数和(自身を除く): 17996482

約数列:

[1, 2, 7, 11, 14, 22, 77, 97, 121, 154, 194, 242, 679, 847, 1067, 1331, 1358, 1694, 2134, 2662, 7469, 9317, 11737, 14641, 14938, 18634, 23474, 29282, 82159, 102487, 129107, 164318, 204974, 258214, 903749, 1420177, 1807498, 2840354, 9941239, 19882478]

約数ペア:

[(1, 19882478), (2, 9941239), (7, 2840354), (11, 1807498), (14, 1420177), (22, 903749), (77, 258214), (97, 204974), (121, 164318), (154, 129107), (194, 102487), (242, 82159), (679, 29282), (847, 23474), (1067, 18634), (1331, 14938), (1358, 14641), (1694, 11737), (2134, 9317), (2662, 7469)]