21260526

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{9551}}^1$

素因数の和:9616

約数の個数: 32

約数和(自身を含む): 49517568

約数和(自身を除く): 28257042

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 106, 159, 318, 371, 742, 1113, 2226, 9551, 19102, 28653, 57306, 66857, 133714, 200571, 401142, 506203, 1012406, 1518609, 3037218, 3543421, 7086842, 10630263, 21260526]

約数ペア:

[(1, 21260526), (2, 10630263), (3, 7086842), (6, 3543421), (7, 3037218), (14, 1518609), (21, 1012406), (42, 506203), (53, 401142), (106, 200571), (159, 133714), (318, 66857), (371, 57306), (742, 28653), (1113, 19102), (2226, 9551)]