30378321

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{19739}}^1$

素因数の和:19770

約数の個数: 20

約数和(自身を含む): 47770800

約数和(自身を除く): 17392479

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 19739, 59217, 177651, 375041, 532953, 1125123, 1598859, 3375369, 10126107, 30378321]

約数ペア:

[(1, 30378321), (3, 10126107), (9, 3375369), (19, 1598859), (27, 1125123), (57, 532953), (81, 375041), (171, 177651), (513, 59217), (1539, 19739)]