30390957

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{821}}^1$

素因数の和:1290

約数の個数: 20

約数和(自身を含む): 45553596

約数和(自身を除く): 15162639

約数列:

[1, 3, 9, 27, 81, 457, 821, 1371, 2463, 4113, 7389, 12339, 22167, 37017, 66501, 375197, 1125591, 3376773, 10130319, 30390957]

約数ペア:

[(1, 30390957), (3, 10130319), (9, 3376773), (27, 1125591), (81, 375197), (457, 66501), (821, 37017), (1371, 22167), (2463, 12339), (4113, 7389)]