21991408

素因数分解:

$2^4\times {\mathrm{293}}^1\times {\mathrm{4691}}^1$

素因数の和:4992

約数の個数: 20

約数和(自身を含む): 42762888

約数和(自身を除く): 20771480

約数列:

[1, 2, 4, 8, 16, 293, 586, 1172, 2344, 4688, 4691, 9382, 18764, 37528, 75056, 1374463, 2748926, 5497852, 10995704, 21991408]

約数ペア:

[(1, 21991408), (2, 10995704), (4, 5497852), (8, 2748926), (16, 1374463), (293, 75056), (586, 37528), (1172, 18764), (2344, 9382), (4688, 4691)]