21836563

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 25555456

約数和(自身を除く): 3718893

約数列:

[1, 7, 73, 151, 283, 511, 1057, 1981, 11023, 20659, 42733, 77161, 144613, 299131, 3119509, 21836563]

約数ペア:

[(1, 21836563), (7, 3119509), (73, 299131), (151, 144613), (283, 77161), (511, 42733), (1057, 20659), (1981, 11023)]