21153076

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17569}}^1$

素因数の和:17623

約数の個数: 24

約数和(自身を含む): 43292480

約数和(自身を除く): 22139404

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17569, 35138, 70276, 122983, 245966, 491932, 755467, 1510934, 3021868, 5288269, 10576538, 21153076]

約数ペア:

[(1, 21153076), (2, 10576538), (4, 5288269), (7, 3021868), (14, 1510934), (28, 755467), (43, 491932), (86, 245966), (172, 122983), (301, 70276), (602, 35138), (1204, 17569)]