21929008

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12809}}^1$

素因数の和:12924

約数の個数: 20

約数和(自身を含む): 42887880

約数和(自身を除く): 20958872

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12809, 25618, 51236, 102472, 204944, 1370563, 2741126, 5482252, 10964504, 21929008]

約数ペア:

[(1, 21929008), (2, 10964504), (4, 5482252), (8, 2741126), (16, 1370563), (107, 204944), (214, 102472), (428, 51236), (856, 25618), (1712, 12809)]