19981022

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{243671}}^1$

素因数の和:243714

約数の個数: 8

約数和(自身を含む): 30702672

約数和(自身を除く): 10721650

約数列:

[1, 2, 41, 82, 243671, 487342, 9990511, 19981022]

約数ペア:

[(1, 19981022), (2, 9990511), (41, 487342), (82, 243671)]