1991569437

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1625

約数の個数: 96

約数和(自身を含む): 3601852800

約数和(自身を除く): 1610283363

約数列:

[1, 3, 9, 11, 13, 27, 33, 37, 39, 81, 99, 111, 117, 143, 243, 297, 333, 351, 407, 429, 481, 891, 999, 1053, 1221, 1287, 1443, 1549, 2673, 2997, 3159, 3663, 3861, 4329, 4647, 5291, 8991, 10989, 11583, 12987, 13941, 15873, 17039, 20137, 32967, 34749, 38961, 41823, 47619, 51117, 57313, 60411, 98901, 116883, 125469, 142857, 153351, 171939, 181233, 221507, 376407, 428571, 460053, 515817, 543699, 630443, 664521, 745069, 1285713, 1380159, 1547451, 1631097, 1891329, 1993563, 2235207, 4140477, 4642353, 4893291, 5673987, 5980689, 6705621, 8195759, 13927059, 17021961, 17942067, 20116863, 24587277, 51065883, 53826201, 60350589, 73761831, 153197649, 181051767, 221285493, 663856479, 1991569437]

約数ペア:

[(1, 1991569437), (3, 663856479), (9, 221285493), (11, 181051767), (13, 153197649), (27, 73761831), (33, 60350589), (37, 53826201), (39, 51065883), (81, 24587277), (99, 20116863), (111, 17942067), (117, 17021961), (143, 13927059), (243, 8195759), (297, 6705621), (333, 5980689), (351, 5673987), (407, 4893291), (429, 4642353), (481, 4140477), (891, 2235207), (999, 1993563), (1053, 1891329), (1221, 1631097), (1287, 1547451), (1443, 1380159), (1549, 1285713), (2673, 745069), (2997, 664521), (3159, 630443), (3663, 543699), (3861, 515817), (4329, 460053), (4647, 428571), (5291, 376407), (8991, 221507), (10989, 181233), (11583, 171939), (12987, 153351), (13941, 142857), (15873, 125469), (17039, 116883), (20137, 98901), (32967, 60411), (34749, 57313), (38961, 51117), (41823, 47619)]