21980354

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{58771}}^1$

素因数の和:58801

約数の個数: 16

約数和(自身を含む): 38084256

約数和(自身を除く): 16103902

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 58771, 117542, 646481, 999107, 1292962, 1998214, 10990177, 21980354]

約数ペア:

[(1, 21980354), (2, 10990177), (11, 1998214), (17, 1292962), (22, 999107), (34, 646481), (187, 117542), (374, 58771)]