21343861

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{5657}}^1$

素因数の和:5689

約数の個数: 16

約数和(自身を含む): 27158400

約数和(自身を除く): 5814539

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 5657, 39599, 62227, 277193, 435589, 1940351, 3049123, 21343861]

約数ペア:

[(1, 21343861), (7, 3049123), (11, 1940351), (49, 435589), (77, 277193), (343, 62227), (539, 39599), (3773, 5657)]