21817684

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18121}}^1$

素因数の和:18175

約数の個数: 24

約数和(自身を含む): 44652608

約数和(自身を除く): 22834924

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 18121, 36242, 72484, 126847, 253694, 507388, 779203, 1558406, 3116812, 5454421, 10908842, 21817684]

約数ペア:

[(1, 21817684), (2, 10908842), (4, 5454421), (7, 3116812), (14, 1558406), (28, 779203), (43, 507388), (86, 253694), (172, 126847), (301, 72484), (602, 36242), (1204, 18121)]