21072554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{26947}}^1$

素因数の和:26989

約数の個数: 16

約数和(自身を含む): 34924608

約数和(自身を除く): 13852054

約数列:

[1, 2, 17, 23, 34, 46, 391, 782, 26947, 53894, 458099, 619781, 916198, 1239562, 10536277, 21072554]

約数ペア:

[(1, 21072554), (2, 10536277), (17, 1239562), (23, 916198), (34, 619781), (46, 458099), (391, 53894), (782, 26947)]