19783894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 33346656

約数和(自身を除く): 13562762

約数列:

[1, 2, 13, 26, 41, 67, 82, 134, 277, 533, 554, 871, 1066, 1742, 2747, 3601, 5494, 7202, 11357, 18559, 22714, 35711, 37118, 71422, 147641, 241267, 295282, 482534, 760919, 1521838, 9891947, 19783894]

約数ペア:

[(1, 19783894), (2, 9891947), (13, 1521838), (26, 760919), (41, 482534), (67, 295282), (82, 241267), (134, 147641), (277, 71422), (533, 37118), (554, 35711), (871, 22714), (1066, 18559), (1742, 11357), (2747, 7202), (3601, 5494)]