21719242

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5659}}^1$

素因数の和:5781

約数の個数: 16

約数和(自身を含む): 34639200

約数和(自身を除く): 12919958

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5659, 11318, 107521, 215042, 571559, 1143118, 10859621, 21719242]

約数ペア:

[(1, 21719242), (2, 10859621), (19, 1143118), (38, 571559), (101, 215042), (202, 107521), (1919, 11318), (3838, 5659)]