21070842

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1789}}^1$

素因数の和:1958

約数の個数: 32

約数和(自身を含む): 45709440

約数和(自身を除く): 24638598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 151, 302, 453, 906, 1789, 1963, 3578, 3926, 5367, 5889, 10734, 11778, 23257, 46514, 69771, 139542, 270139, 540278, 810417, 1620834, 3511807, 7023614, 10535421, 21070842]

約数ペア:

[(1, 21070842), (2, 10535421), (3, 7023614), (6, 3511807), (13, 1620834), (26, 810417), (39, 540278), (78, 270139), (151, 139542), (302, 69771), (453, 46514), (906, 23257), (1789, 11778), (1963, 10734), (3578, 5889), (3926, 5367)]