19905634

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 35199360

約数和(自身を除く): 15293726

約数列:

[1, 2, 7, 14, 53, 106, 139, 193, 278, 371, 386, 742, 973, 1351, 1946, 2702, 7367, 10229, 14734, 20458, 26827, 51569, 53654, 71603, 103138, 143206, 187789, 375578, 1421831, 2843662, 9952817, 19905634]

約数ペア:

[(1, 19905634), (2, 9952817), (7, 2843662), (14, 1421831), (53, 375578), (106, 187789), (139, 143206), (193, 103138), (278, 71603), (371, 53654), (386, 51569), (742, 26827), (973, 20458), (1351, 14734), (1946, 10229), (2702, 7367)]