198785972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{645409}}^1$

素因数の和:645431

約数の個数: 24

約数和(自身を含む): 433715520

約数和(自身を除く): 234929548

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 645409, 1290818, 2581636, 4517863, 7099499, 9035726, 14198998, 18071452, 28397996, 49696493, 99392986, 198785972]

約数ペア:

[(1, 198785972), (2, 99392986), (4, 49696493), (7, 28397996), (11, 18071452), (14, 14198998), (22, 9035726), (28, 7099499), (44, 4517863), (77, 2581636), (154, 1290818), (308, 645409)]