21157894

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{5507}}^1$

素因数の和:5639

約数の個数: 16

約数和(自身を含む): 33907248

約数和(自身を除く): 12749354

約数列:

[1, 2, 17, 34, 113, 226, 1921, 3842, 5507, 11014, 93619, 187238, 622291, 1244582, 10578947, 21157894]

約数ペア:

[(1, 21157894), (2, 10578947), (17, 1244582), (34, 622291), (113, 187238), (226, 93619), (1921, 11014), (3842, 5507)]