21293894

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8821}}^1$

素因数の和:8911

約数の個数: 16

約数和(自身を含む): 34299936

約数和(自身を除く): 13006042

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8821, 17642, 149957, 299914, 626291, 1252582, 10646947, 21293894]

約数ペア:

[(1, 21293894), (2, 10646947), (17, 1252582), (34, 626291), (71, 299914), (142, 149957), (1207, 17642), (2414, 8821)]