21081173

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 23502960

約数和(自身を除く): 2421787

約数列:

[1, 17, 29, 61, 493, 701, 1037, 1769, 11917, 20329, 30073, 42761, 345593, 726937, 1240069, 21081173]

約数ペア:

[(1, 21081173), (17, 1240069), (29, 726937), (61, 345593), (493, 42761), (701, 30073), (1037, 20329), (1769, 11917)]