19819856

素因数分解:

$2^4\times 7^1\times {\mathrm{271}}^1\times {\mathrm{653}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 44116224

約数和(自身を除く): 24296368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 271, 542, 653, 1084, 1306, 1897, 2168, 2612, 3794, 4336, 4571, 5224, 7588, 9142, 10448, 15176, 18284, 30352, 36568, 73136, 176963, 353926, 707852, 1238741, 1415704, 2477482, 2831408, 4954964, 9909928, 19819856]

約数ペア:

[(1, 19819856), (2, 9909928), (4, 4954964), (7, 2831408), (8, 2477482), (14, 1415704), (16, 1238741), (28, 707852), (56, 353926), (112, 176963), (271, 73136), (542, 36568), (653, 30352), (1084, 18284), (1306, 15176), (1897, 10448), (2168, 9142), (2612, 7588), (3794, 5224), (4336, 4571)]