30812319

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{20021}}^1$

素因数の和:20052

約数の個数: 20

約数和(自身を含む): 48453240

約数和(自身を除く): 17640921

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 20021, 60063, 180189, 380399, 540567, 1141197, 1621701, 3423591, 10270773, 30812319]

約数ペア:

[(1, 30812319), (3, 10270773), (9, 3423591), (19, 1621701), (27, 1141197), (57, 540567), (81, 380399), (171, 180189), (513, 60063), (1539, 20021)]