19902568

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2713}}^1$

素因数の和:2857

約数の個数: 32

約数和(自身を含む): 42989760

約数和(自身を除く): 23087192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2713, 3668, 5426, 7336, 10852, 18991, 21704, 37982, 75964, 151928, 355403, 710806, 1421612, 2487821, 2843224, 4975642, 9951284, 19902568]

約数ペア:

[(1, 19902568), (2, 9951284), (4, 4975642), (7, 2843224), (8, 2487821), (14, 1421612), (28, 710806), (56, 355403), (131, 151928), (262, 75964), (524, 37982), (917, 21704), (1048, 18991), (1834, 10852), (2713, 7336), (3668, 5426)]