20480313

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18401}}^1$

素因数の和:18464

約数の個数: 16

約数和(自身を含む): 31798656

約数和(自身を除く): 11318343

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18401, 55203, 128807, 386421, 975253, 2925759, 6826771, 20480313]

約数ペア:

[(1, 20480313), (3, 6826771), (7, 2925759), (21, 975253), (53, 386421), (159, 128807), (371, 55203), (1113, 18401)]