21170838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1009}}^1$

素因数の和:1296

約数の個数: 32

約数和(自身を含む): 45813600

約数和(自身を除く): 24642762

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 269, 538, 807, 1009, 1614, 2018, 3027, 3497, 6054, 6994, 10491, 13117, 20982, 26234, 39351, 78702, 271421, 542842, 814263, 1628526, 3528473, 7056946, 10585419, 21170838]

約数ペア:

[(1, 21170838), (2, 10585419), (3, 7056946), (6, 3528473), (13, 1628526), (26, 814263), (39, 542842), (78, 271421), (269, 78702), (538, 39351), (807, 26234), (1009, 20982), (1614, 13117), (2018, 10491), (3027, 6994), (3497, 6054)]