20945288

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28771}}^1$

素因数の和:28797

約数の個数: 32

約数和(自身を含む): 48336960

約数和(自身を除く): 27391672

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28771, 57542, 115084, 201397, 230168, 374023, 402794, 748046, 805588, 1496092, 1611176, 2618161, 2992184, 5236322, 10472644, 20945288]

約数ペア:

[(1, 20945288), (2, 10472644), (4, 5236322), (7, 2992184), (8, 2618161), (13, 1611176), (14, 1496092), (26, 805588), (28, 748046), (52, 402794), (56, 374023), (91, 230168), (104, 201397), (182, 115084), (364, 57542), (728, 28771)]