18991773

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37021}}^1$

素因数の和:37049

約数の個数: 16

約数和(自身を含む): 29617600

約数和(自身を除く): 10625827

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 37021, 111063, 333189, 703399, 999567, 2110197, 6330591, 18991773]

約数ペア:

[(1, 18991773), (3, 6330591), (9, 2110197), (19, 999567), (27, 703399), (57, 333189), (171, 111063), (513, 37021)]