21709911

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1949}}^1$

素因数の和:2078

約数の個数: 16

約数和(自身を含む): 29952000

約数和(自身を除く): 8242089

約数列:

[1, 3, 47, 79, 141, 237, 1949, 3713, 5847, 11139, 91603, 153971, 274809, 461913, 7236637, 21709911]

約数ペア:

[(1, 21709911), (3, 7236637), (47, 461913), (79, 274809), (141, 153971), (237, 91603), (1949, 11139), (3713, 5847)]