20491766

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31721}}^1$

素因数の和:31759

約数の個数: 16

約数和(自身を含む): 34259760

約数和(自身を除く): 13767994

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 31721, 63442, 539257, 602699, 1078514, 1205398, 10245883, 20491766]

約数ペア:

[(1, 20491766), (2, 10245883), (17, 1205398), (19, 1078514), (34, 602699), (38, 539257), (323, 63442), (646, 31721)]