21957386

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{2213}}^1$

素因数の和:2278

約数の個数: 24

約数和(自身を含む): 37102212

約数和(自身を除く): 15144826

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 451, 902, 2213, 4426, 4961, 9922, 24343, 48686, 90733, 181466, 267773, 535546, 998063, 1996126, 10978693, 21957386]

約数ペア:

[(1, 21957386), (2, 10978693), (11, 1996126), (22, 998063), (41, 535546), (82, 267773), (121, 181466), (242, 90733), (451, 48686), (902, 24343), (2213, 9922), (4426, 4961)]