21283287

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5573}}^1$

素因数の和:5662

約数の個数: 16

約数和(自身を含む): 30322560

約数和(自身を除く): 9039273

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5573, 16719, 105887, 317661, 373391, 1120173, 7094429, 21283287]

約数ペア:

[(1, 21283287), (3, 7094429), (19, 1120173), (57, 373391), (67, 317661), (201, 105887), (1273, 16719), (3819, 5573)]