20547513

素因数分解:

$3^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:224

約数の個数: 60

約数和(自身を含む): 37078272

約数和(自身を除く): 16530759

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 81, 93, 147, 167, 189, 217, 279, 441, 501, 567, 651, 837, 1169, 1323, 1503, 1519, 1953, 2511, 3507, 3969, 4509, 4557, 5177, 5859, 8183, 10521, 13527, 13671, 15531, 17577, 24549, 31563, 36239, 41013, 46593, 73647, 94689, 108717, 123039, 139779, 220941, 253673, 326151, 419337, 662823, 761019, 978453, 2283057, 2935359, 6849171, 20547513]

約数ペア:

[(1, 20547513), (3, 6849171), (7, 2935359), (9, 2283057), (21, 978453), (27, 761019), (31, 662823), (49, 419337), (63, 326151), (81, 253673), (93, 220941), (147, 139779), (167, 123039), (189, 108717), (217, 94689), (279, 73647), (441, 46593), (501, 41013), (567, 36239), (651, 31563), (837, 24549), (1169, 17577), (1323, 15531), (1503, 13671), (1519, 13527), (1953, 10521), (2511, 8183), (3507, 5859), (3969, 5177), (4509, 4557)]