20431291257

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{38371}}^1$

素因数の和:38471

約数の個数: 64

約数和(自身を含む): 34295358720

約数和(自身を除く): 13864067463

約数列:

[1, 3, 9, 13, 27, 37, 39, 41, 111, 117, 123, 333, 351, 369, 481, 533, 999, 1107, 1443, 1517, 1599, 4329, 4551, 4797, 12987, 13653, 14391, 19721, 38371, 40959, 59163, 115113, 177489, 345339, 498823, 532467, 1036017, 1419727, 1496469, 1573211, 4259181, 4489407, 4719633, 12777543, 13468221, 14158899, 18456451, 20451743, 38332629, 42476697, 55369353, 58208807, 61355229, 166108059, 174626421, 184065687, 498324177, 523879263, 552197061, 756714491, 1571637789, 2270143473, 6810430419, 20431291257]

約数ペア:

[(1, 20431291257), (3, 6810430419), (9, 2270143473), (13, 1571637789), (27, 756714491), (37, 552197061), (39, 523879263), (41, 498324177), (111, 184065687), (117, 174626421), (123, 166108059), (333, 61355229), (351, 58208807), (369, 55369353), (481, 42476697), (533, 38332629), (999, 20451743), (1107, 18456451), (1443, 14158899), (1517, 13468221), (1599, 12777543), (4329, 4719633), (4551, 4489407), (4797, 4259181), (12987, 1573211), (13653, 1496469), (14391, 1419727), (19721, 1036017), (38371, 532467), (40959, 498823), (59163, 345339), (115113, 177489)]