19965665

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{557}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 24587712

約数和(自身を除く): 4622047

約数列:

[1, 5, 67, 107, 335, 535, 557, 2785, 7169, 35845, 37319, 59599, 186595, 297995, 3993133, 19965665]

約数ペア:

[(1, 19965665), (5, 3993133), (67, 297995), (107, 186595), (335, 59599), (535, 37319), (557, 35845), (2785, 7169)]