21666506

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{8887}}^1$

素因数の和:8965

約数の個数: 16

約数和(自身を含む): 34556544

約数和(自身を除く): 12890038

約数列:

[1, 2, 23, 46, 53, 106, 1219, 2438, 8887, 17774, 204401, 408802, 471011, 942022, 10833253, 21666506]

約数ペア:

[(1, 21666506), (2, 10833253), (23, 942022), (46, 471011), (53, 408802), (106, 204401), (1219, 17774), (2438, 8887)]