19902904

素因数分解:

$2^3\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1213}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 42829920

約数和(自身を除く): 22927016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 293, 586, 1172, 1213, 2051, 2344, 2426, 4102, 4852, 8204, 8491, 9704, 16408, 16982, 33964, 67928, 355409, 710818, 1421636, 2487863, 2843272, 4975726, 9951452, 19902904]

約数ペア:

[(1, 19902904), (2, 9951452), (4, 4975726), (7, 2843272), (8, 2487863), (14, 1421636), (28, 710818), (56, 355409), (293, 67928), (586, 33964), (1172, 16982), (1213, 16408), (2051, 9704), (2344, 8491), (2426, 8204), (4102, 4852)]