20786687253

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 33874993152

約数和(自身を除く): 13088305899

約数列:

[1, 3, 9, 17, 23, 51, 69, 71, 153, 207, 213, 271, 307, 391, 639, 813, 921, 1173, 1207, 1633, 2439, 2763, 3519, 3621, 4607, 4899, 5219, 6233, 7061, 10863, 13821, 14697, 15657, 18699, 19241, 21183, 21797, 27761, 41463, 46971, 56097, 57723, 63549, 65391, 83197, 83283, 105961, 120037, 173169, 196173, 249591, 249849, 317883, 327097, 360111, 370549, 442543, 501331, 748773, 953649, 981291, 1080333, 1111647, 1327629, 1414349, 1503993, 1913531, 2943873, 3334941, 3982887, 4243047, 4511979, 5740593, 5906987, 7523231, 8522627, 12729141, 17221779, 17720961, 22569693, 25567881, 32530027, 53162883, 67709079, 76703643, 97590081, 100418779, 135860701, 292770243, 301256337, 407582103, 903769011, 1222746309, 2309631917, 6928895751, 20786687253]

約数ペア:

[(1, 20786687253), (3, 6928895751), (9, 2309631917), (17, 1222746309), (23, 903769011), (51, 407582103), (69, 301256337), (71, 292770243), (153, 135860701), (207, 100418779), (213, 97590081), (271, 76703643), (307, 67709079), (391, 53162883), (639, 32530027), (813, 25567881), (921, 22569693), (1173, 17720961), (1207, 17221779), (1633, 12729141), (2439, 8522627), (2763, 7523231), (3519, 5906987), (3621, 5740593), (4607, 4511979), (4899, 4243047), (5219, 3982887), (6233, 3334941), (7061, 2943873), (10863, 1913531), (13821, 1503993), (14697, 1414349), (15657, 1327629), (18699, 1111647), (19241, 1080333), (21183, 981291), (21797, 953649), (27761, 748773), (41463, 501331), (46971, 442543), (56097, 370549), (57723, 360111), (63549, 327097), (65391, 317883), (83197, 249849), (83283, 249591), (105961, 196173), (120037, 173169)]