21848211

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 42375168

約数和(自身を除く): 20526957

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 63, 77, 81, 93, 99, 113, 189, 217, 231, 279, 297, 339, 341, 567, 651, 693, 791, 837, 891, 1017, 1023, 1243, 1953, 2079, 2373, 2387, 2511, 3051, 3069, 3503, 3729, 5859, 6237, 7119, 7161, 8701, 9153, 9207, 10509, 11187, 17577, 21357, 21483, 24521, 26103, 27621, 31527, 33561, 38533, 64071, 64449, 73563, 78309, 94581, 100683, 115599, 193347, 220689, 234927, 269731, 283743, 346797, 662067, 704781, 809193, 1040391, 1986201, 2427579, 3121173, 7282737, 21848211]

約数ペア:

[(1, 21848211), (3, 7282737), (7, 3121173), (9, 2427579), (11, 1986201), (21, 1040391), (27, 809193), (31, 704781), (33, 662067), (63, 346797), (77, 283743), (81, 269731), (93, 234927), (99, 220689), (113, 193347), (189, 115599), (217, 100683), (231, 94581), (279, 78309), (297, 73563), (339, 64449), (341, 64071), (567, 38533), (651, 33561), (693, 31527), (791, 27621), (837, 26103), (891, 24521), (1017, 21483), (1023, 21357), (1243, 17577), (1953, 11187), (2079, 10509), (2373, 9207), (2387, 9153), (2511, 8701), (3051, 7161), (3069, 7119), (3503, 6237), (3729, 5859)]