21940695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69653}}^1$

素因数の和:69671

約数の個数: 24

約数和(自身を含む): 43464096

約数和(自身を除く): 21523401

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69653, 208959, 348265, 487571, 626877, 1044795, 1462713, 2437855, 3134385, 4388139, 7313565, 21940695]

約数ペア:

[(1, 21940695), (3, 7313565), (5, 4388139), (7, 3134385), (9, 2437855), (15, 1462713), (21, 1044795), (35, 626877), (45, 487571), (63, 348265), (105, 208959), (315, 69653)]