21779791

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{907}}^1$

素因数の和:1014

約数の個数: 16

約数和(自身を含む): 24842880

約数和(自身を除く): 3063089

約数列:

[1, 11, 37, 59, 407, 649, 907, 2183, 9977, 24013, 33559, 53513, 369149, 588643, 1979981, 21779791]

約数ペア:

[(1, 21779791), (11, 1979981), (37, 588643), (59, 369149), (407, 53513), (649, 33559), (907, 24013), (2183, 9977)]