21012221524

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39496657}}^1$

素因数の和:39496687

約数の個数: 24

約数和(自身を含む): 44236256960

約数和(自身を除く): 23224035436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39496657, 78993314, 157986628, 276476599, 552953198, 750436483, 1105906396, 1500872966, 3001745932, 5253055381, 10506110762, 21012221524]

約数ペア:

[(1, 21012221524), (2, 10506110762), (4, 5253055381), (7, 3001745932), (14, 1500872966), (19, 1105906396), (28, 750436483), (38, 552953198), (76, 276476599), (133, 157986628), (266, 78993314), (532, 39496657)]