87811985919

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1\times {\mathrm{971}}^1$

素因数の和:1648

約数の個数: 64

約数和(自身を含む): 137506802688

約数和(自身を除く): 49694816769

約数列:

[1, 3, 7, 21, 53, 159, 193, 371, 421, 579, 971, 1113, 1263, 1351, 2913, 2947, 4053, 6797, 8841, 10229, 20391, 22313, 30687, 51463, 66939, 71603, 81253, 154389, 156191, 187403, 214809, 243759, 360241, 408791, 468573, 562209, 568771, 1080723, 1226373, 1311821, 1706313, 2861537, 3935463, 4306409, 8584611, 9932359, 12919227, 21665923, 29797077, 30144863, 64997769, 69526513, 78896663, 90434589, 151661461, 208579539, 236689989, 454984383, 552276641, 1656829923, 4181523139, 12544569417, 29270661973, 87811985919]

約数ペア:

[(1, 87811985919), (3, 29270661973), (7, 12544569417), (21, 4181523139), (53, 1656829923), (159, 552276641), (193, 454984383), (371, 236689989), (421, 208579539), (579, 151661461), (971, 90434589), (1113, 78896663), (1263, 69526513), (1351, 64997769), (2913, 30144863), (2947, 29797077), (4053, 21665923), (6797, 12919227), (8841, 9932359), (10229, 8584611), (20391, 4306409), (22313, 3935463), (30687, 2861537), (51463, 1706313), (66939, 1311821), (71603, 1226373), (81253, 1080723), (154389, 568771), (156191, 562209), (187403, 468573), (214809, 408791), (243759, 360241)]