20239389

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13151}}^1$

素因数の和:13182

約数の個数: 20

約数和(自身を含む): 31827840

約数和(自身を除く): 11588451

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13151, 39453, 118359, 249869, 355077, 749607, 1065231, 2248821, 6746463, 20239389]

約数ペア:

[(1, 20239389), (3, 6746463), (9, 2248821), (19, 1065231), (27, 749607), (57, 355077), (81, 249869), (171, 118359), (513, 39453), (1539, 13151)]