21633647

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{1223}}^1$

素因数の和:1275

約数の個数: 18

約数和(自身を含む): 26581608

約数和(自身を除く): 4947961

約数列:

[1, 7, 19, 49, 133, 361, 931, 1223, 2527, 8561, 17689, 23237, 59927, 162659, 441503, 1138613, 3090521, 21633647]

約数ペア:

[(1, 21633647), (7, 3090521), (19, 1138613), (49, 441503), (133, 162659), (361, 59927), (931, 23237), (1223, 17689), (2527, 8561)]