21339997

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2287}}^1$

素因数の和:2368

約数の個数: 16

約数和(自身を含む): 25772032

約数和(自身を除く): 4432035

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2287, 9331, 16009, 70897, 98341, 496279, 688387, 3048571, 21339997]

約数ペア:

[(1, 21339997), (7, 3048571), (31, 688387), (43, 496279), (217, 98341), (301, 70897), (1333, 16009), (2287, 9331)]