21712649

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2767}}^1$

素因数の和:2852

約数の個数: 16

約数和(自身を含む): 26572800

約数和(自身を除く): 4860151

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2767, 7847, 19369, 52573, 163253, 368011, 1142771, 3101807, 21712649]

約数ペア:

[(1, 21712649), (7, 3101807), (19, 1142771), (59, 368011), (133, 163253), (413, 52573), (1121, 19369), (2767, 7847)]