21959564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{769}}^1$

素因数の和:854

約数の個数: 36

約数和(自身を含む): 43012200

約数和(自身を除く): 21052636

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 121, 236, 242, 484, 649, 769, 1298, 1538, 2596, 3076, 7139, 8459, 14278, 16918, 28556, 33836, 45371, 90742, 93049, 181484, 186098, 372196, 499081, 998162, 1996324, 5489891, 10979782, 21959564]

約数ペア:

[(1, 21959564), (2, 10979782), (4, 5489891), (11, 1996324), (22, 998162), (44, 499081), (59, 372196), (118, 186098), (121, 181484), (236, 93049), (242, 90742), (484, 45371), (649, 33836), (769, 28556), (1298, 16918), (1538, 14278), (2596, 8459), (3076, 7139)]