21185791

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{409}}^1$

素因数の和:714

約数の個数: 16

約数和(自身を含む): 24619680

約数和(自身を除く): 3433889

約数列:

[1, 11, 17, 187, 277, 409, 3047, 4499, 4709, 6953, 51799, 76483, 113293, 1246223, 1925981, 21185791]

約数ペア:

[(1, 21185791), (11, 1925981), (17, 1246223), (187, 113293), (277, 76483), (409, 51799), (3047, 6953), (4499, 4709)]