1639197

素因数分解:

$3^4\times 7^3\times {\mathrm{59}}^1$

素因数の和:92

約数の個数: 40

約数和(自身を含む): 2904000

約数和(自身を除く): 1264803

約数列:

[1, 3, 7, 9, 21, 27, 49, 59, 63, 81, 147, 177, 189, 343, 413, 441, 531, 567, 1029, 1239, 1323, 1593, 2891, 3087, 3717, 3969, 4779, 8673, 9261, 11151, 20237, 26019, 27783, 33453, 60711, 78057, 182133, 234171, 546399, 1639197]

約数ペア:

[(1, 1639197), (3, 546399), (7, 234171), (9, 182133), (21, 78057), (27, 60711), (49, 33453), (59, 27783), (63, 26019), (81, 20237), (147, 11151), (177, 9261), (189, 8673), (343, 4779), (413, 3969), (441, 3717), (531, 3087), (567, 2891), (1029, 1593), (1239, 1323)]