21866079

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{457}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 30008160

約数和(自身を除く): 8142081

約数列:

[1, 3, 41, 123, 389, 457, 1167, 1371, 15949, 18737, 47847, 56211, 177773, 533319, 7288693, 21866079]

約数ペア:

[(1, 21866079), (3, 7288693), (41, 533319), (123, 177773), (389, 56211), (457, 47847), (1167, 18737), (1371, 15949)]