199978684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{2940863}}^1$

素因数の和:2940884

約数の個数: 12

約数和(自身を含む): 370548864

約数和(自身を除く): 170570180

約数列:

[1, 2, 4, 17, 34, 68, 2940863, 5881726, 11763452, 49994671, 99989342, 199978684]

約数ペア:

[(1, 199978684), (2, 99989342), (4, 49994671), (17, 11763452), (34, 5881726), (68, 2940863)]