20691129599

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{3174947}}^1$

素因数の和:3174987

約数の個数: 16

約数和(自身を含む): 25399584000

約数和(自身を除く): 4708454401

約数列:

[1, 7, 19, 49, 133, 343, 931, 6517, 3174947, 22224629, 60323993, 155572403, 422267951, 1089006821, 2955875657, 20691129599]

約数ペア:

[(1, 20691129599), (7, 2955875657), (19, 1089006821), (49, 422267951), (133, 155572403), (343, 60323993), (931, 22224629), (6517, 3174947)]