21561254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{75389}}^1$

素因数の和:75415

約数の個数: 16

約数和(自身を含む): 37996560

約数和(自身を除く): 16435306

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 75389, 150778, 829279, 980057, 1658558, 1960114, 10780627, 21561254]

約数ペア:

[(1, 21561254), (2, 10780627), (11, 1960114), (13, 1658558), (22, 980057), (26, 829279), (143, 150778), (286, 75389)]