18478773

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12007}}^1$

素因数の和:12038

約数の個数: 20

約数和(自身を含む): 29059360

約数和(自身を除く): 10580587

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12007, 36021, 108063, 228133, 324189, 684399, 972567, 2053197, 6159591, 18478773]

約数ペア:

[(1, 18478773), (3, 6159591), (9, 2053197), (19, 972567), (27, 684399), (57, 324189), (81, 228133), (171, 108063), (513, 36021), (1539, 12007)]