18681411

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{24043}}^1$

素因数の和:24090

約数の個数: 16

約数和(自身を含む): 29237504

約数和(自身を除く): 10556093

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 24043, 72129, 168301, 504903, 889591, 2668773, 6227137, 18681411]

約数ペア:

[(1, 18681411), (3, 6227137), (7, 2668773), (21, 889591), (37, 504903), (111, 168301), (259, 72129), (777, 24043)]