21968023

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 28440720

約数和(自身を除く): 6472697

約数列:

[1, 7, 11, 49, 53, 77, 371, 539, 583, 769, 2597, 4081, 5383, 8459, 28567, 37681, 40757, 59213, 285299, 414491, 448327, 1997093, 3138289, 21968023]

約数ペア:

[(1, 21968023), (7, 3138289), (11, 1997093), (49, 448327), (53, 414491), (77, 285299), (371, 59213), (539, 40757), (583, 37681), (769, 28567), (2597, 8459), (4081, 5383)]