18678995

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{557}}^1$

素因数の和:934

約数の個数: 16

約数和(自身を含む): 23703840

約数和(自身を除く): 5024845

約数列:

[1, 5, 19, 95, 353, 557, 1765, 2785, 6707, 10583, 33535, 52915, 196621, 983105, 3735799, 18678995]

約数ペア:

[(1, 18678995), (5, 3735799), (19, 983105), (95, 196621), (353, 52915), (557, 33535), (1765, 10583), (2785, 6707)]