21898481

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{691}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 24845568

約数和(自身を除く): 2947087

約数列:

[1, 11, 43, 67, 473, 691, 737, 2881, 7601, 29713, 31691, 46297, 326843, 509267, 1990771, 21898481]

約数ペア:

[(1, 21898481), (11, 1990771), (43, 509267), (67, 326843), (473, 46297), (691, 31691), (737, 29713), (2881, 7601)]