20727119

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1543}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 25198080

約数和(自身を除く): 4470961

約数列:

[1, 7, 19, 101, 133, 707, 1543, 1919, 10801, 13433, 29317, 155843, 205219, 1090901, 2961017, 20727119]

約数ペア:

[(1, 20727119), (7, 2961017), (19, 1090901), (101, 205219), (133, 155843), (707, 29317), (1543, 13433), (1919, 10801)]