21128526

素因数分解:

$2^1\times 3^4\times {\mathrm{130423}}^1$

素因数の和:130437

約数の個数: 20

約数和(自身を含む): 47343912

約数和(自身を除く): 26215386

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130423, 260846, 391269, 782538, 1173807, 2347614, 3521421, 7042842, 10564263, 21128526]

約数ペア:

[(1, 21128526), (2, 10564263), (3, 7042842), (6, 3521421), (9, 2347614), (18, 1173807), (27, 782538), (54, 391269), (81, 260846), (162, 130423)]