18971711

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 23097312

約数和(自身を除く): 4125601

約数列:

[1, 11, 17, 23, 121, 187, 253, 391, 401, 2057, 2783, 4301, 4411, 6817, 9223, 47311, 48521, 74987, 101453, 156791, 824857, 1115983, 1724701, 18971711]

約数ペア:

[(1, 18971711), (11, 1724701), (17, 1115983), (23, 824857), (121, 156791), (187, 101453), (253, 74987), (391, 48521), (401, 47311), (2057, 9223), (2783, 6817), (4301, 4411)]