21999649

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{929}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 4784351

約数列:

[1, 7, 17, 119, 199, 929, 1393, 3383, 6503, 15793, 23681, 110551, 184871, 1294097, 3142807, 21999649]

約数ペア:

[(1, 21999649), (7, 3142807), (17, 1294097), (119, 184871), (199, 110551), (929, 23681), (1393, 15793), (3383, 6503)]