21856408

素因数分解:

$2^3\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1409}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 47037600

約数和(自身を除く): 25181192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 277, 554, 1108, 1409, 1939, 2216, 2818, 3878, 5636, 7756, 9863, 11272, 15512, 19726, 39452, 78904, 390293, 780586, 1561172, 2732051, 3122344, 5464102, 10928204, 21856408]

約数ペア:

[(1, 21856408), (2, 10928204), (4, 5464102), (7, 3122344), (8, 2732051), (14, 1561172), (28, 780586), (56, 390293), (277, 78904), (554, 39452), (1108, 19726), (1409, 15512), (1939, 11272), (2216, 9863), (2818, 7756), (3878, 5636)]