21129262

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12473}}^1$

素因数の和:12504

約数の個数: 24

約数和(自身を含む): 39817008

約数和(自身を除く): 18687746

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12473, 24946, 87311, 137203, 174622, 274406, 960421, 1509233, 1920842, 3018466, 10564631, 21129262]

約数ペア:

[(1, 21129262), (2, 10564631), (7, 3018466), (11, 1920842), (14, 1509233), (22, 960421), (77, 274406), (121, 174622), (154, 137203), (242, 87311), (847, 24946), (1694, 12473)]