21479133

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7757}}^1$

素因数の和:7844

約数の個数: 16

約数和(自身を含む): 31280256

約数和(自身を除く): 9801123

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7757, 23271, 100841, 302523, 550747, 1652241, 7159711, 21479133]

約数ペア:

[(1, 21479133), (3, 7159711), (13, 1652241), (39, 550747), (71, 302523), (213, 100841), (923, 23271), (2769, 7757)]