51218307

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 88058880

約数和(自身を除く): 36840573

約数列:

[1, 3, 7, 9, 21, 41, 63, 79, 123, 237, 251, 287, 369, 553, 711, 753, 861, 1659, 1757, 2259, 2583, 3239, 4977, 5271, 9717, 10291, 15813, 19829, 22673, 29151, 30873, 59487, 68019, 72037, 92619, 138803, 178461, 204057, 216111, 416409, 648333, 812989, 1249227, 2438967, 5690923, 7316901, 17072769, 51218307]

約数ペア:

[(1, 51218307), (3, 17072769), (7, 7316901), (9, 5690923), (21, 2438967), (41, 1249227), (63, 812989), (79, 648333), (123, 416409), (237, 216111), (251, 204057), (287, 178461), (369, 138803), (553, 92619), (711, 72037), (753, 68019), (861, 59487), (1659, 30873), (1757, 29151), (2259, 22673), (2583, 19829), (3239, 15813), (4977, 10291), (5271, 9717)]