21969857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1901}}^1$

素因数の和:2048

約数の個数: 16

約数和(自身を含む): 27267072

約数和(自身を除く): 5297215

約数列:

[1, 7, 13, 91, 127, 889, 1651, 1901, 11557, 13307, 24713, 172991, 241427, 1689989, 3138551, 21969857]

約数ペア:

[(1, 21969857), (7, 3138551), (13, 1689989), (91, 241427), (127, 172991), (889, 24713), (1651, 13307), (1901, 11557)]