21232912

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13681}}^1$

素因数の和:13786

約数の個数: 20

約数和(自身を含む): 41565916

約数和(自身を除く): 20333004

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13681, 27362, 54724, 109448, 218896, 1327057, 2654114, 5308228, 10616456, 21232912]

約数ペア:

[(1, 21232912), (2, 10616456), (4, 5308228), (8, 2654114), (16, 1327057), (97, 218896), (194, 109448), (388, 54724), (776, 27362), (1552, 13681)]