56871639

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 80

約数和(自身を含む): 100362240

約数和(自身を除く): 43490601

約数列:

[1, 3, 9, 11, 27, 29, 31, 33, 71, 81, 87, 93, 99, 213, 261, 279, 297, 319, 341, 639, 781, 783, 837, 891, 899, 957, 1023, 1917, 2059, 2201, 2343, 2349, 2511, 2697, 2871, 3069, 5751, 6177, 6603, 7029, 8091, 8613, 9207, 9889, 18531, 19809, 21087, 22649, 24211, 24273, 25839, 27621, 29667, 55593, 59427, 63261, 63829, 67947, 72633, 72819, 89001, 166779, 178281, 191487, 203841, 217899, 267003, 574461, 611523, 653697, 702119, 801009, 1723383, 1834569, 1961091, 2106357, 5170149, 6319071, 18957213, 56871639]

約数ペア:

[(1, 56871639), (3, 18957213), (9, 6319071), (11, 5170149), (27, 2106357), (29, 1961091), (31, 1834569), (33, 1723383), (71, 801009), (81, 702119), (87, 653697), (93, 611523), (99, 574461), (213, 267003), (261, 217899), (279, 203841), (297, 191487), (319, 178281), (341, 166779), (639, 89001), (781, 72819), (783, 72633), (837, 67947), (891, 63829), (899, 63261), (957, 59427), (1023, 55593), (1917, 29667), (2059, 27621), (2201, 25839), (2343, 24273), (2349, 24211), (2511, 22649), (2697, 21087), (2871, 19809), (3069, 18531), (5751, 9889), (6177, 9207), (6603, 8613), (7029, 8091)]