18378311

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{541}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 22061568

約数和(自身を除く): 3683257

約数列:

[1, 7, 23, 161, 211, 541, 1477, 3787, 4853, 12443, 33971, 87101, 114151, 799057, 2625473, 18378311]

約数ペア:

[(1, 18378311), (7, 2625473), (23, 799057), (161, 114151), (211, 87101), (541, 33971), (1477, 12443), (3787, 4853)]