21095816

素因数分解:

$2^3\times 7^1\times {\mathrm{449}}^1\times {\mathrm{839}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 24264184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 449, 839, 898, 1678, 1796, 3143, 3356, 3592, 5873, 6286, 6712, 11746, 12572, 23492, 25144, 46984, 376711, 753422, 1506844, 2636977, 3013688, 5273954, 10547908, 21095816]

約数ペア:

[(1, 21095816), (2, 10547908), (4, 5273954), (7, 3013688), (8, 2636977), (14, 1506844), (28, 753422), (56, 376711), (449, 46984), (839, 25144), (898, 23492), (1678, 12572), (1796, 11746), (3143, 6712), (3356, 6286), (3592, 5873)]