20712276

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{44257}}^1$

素因数の和:44280

約数の個数: 36

約数和(自身を含む): 56384692

約数和(自身を除く): 35672416

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 44257, 88514, 132771, 177028, 265542, 398313, 531084, 575341, 796626, 1150682, 1593252, 1726023, 2301364, 3452046, 5178069, 6904092, 10356138, 20712276]

約数ペア:

[(1, 20712276), (2, 10356138), (3, 6904092), (4, 5178069), (6, 3452046), (9, 2301364), (12, 1726023), (13, 1593252), (18, 1150682), (26, 796626), (36, 575341), (39, 531084), (52, 398313), (78, 265542), (117, 177028), (156, 132771), (234, 88514), (468, 44257)]