21519113

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{5273}}^1$

素因数の和:5344

約数の個数: 16

約数和(自身を含む): 27340416

約数和(自身を除く): 5821303

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 5273, 36911, 58003, 279469, 406021, 1956283, 3074159, 21519113]

約数ペア:

[(1, 21519113), (7, 3074159), (11, 1956283), (53, 406021), (77, 279469), (371, 58003), (583, 36911), (4081, 5273)]