21755965

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56509}}^1$

素因数の和:56532

約数の個数: 16

約数和(自身を含む): 32549760

約数和(自身を除く): 10793795

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 56509, 282545, 395563, 621599, 1977815, 3107995, 4351193, 21755965]

約数ペア:

[(1, 21755965), (5, 4351193), (7, 3107995), (11, 1977815), (35, 621599), (55, 395563), (77, 282545), (385, 56509)]