21601293

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{9437}}^1$

素因数の和:9556

約数の個数: 16

約数和(自身を含む): 33221760

約数和(自身を除く): 11620467

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 9437, 28311, 66059, 198177, 1028633, 3085899, 7200431, 21601293]

約数ペア:

[(1, 21601293), (3, 7200431), (7, 3085899), (21, 1028633), (109, 198177), (327, 66059), (763, 28311), (2289, 9437)]