21098326

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{1481}}^1$

素因数の和:1919

約数の個数: 16

約数和(自身を含む): 33611760

約数和(自身を除く): 12513434

約数列:

[1, 2, 17, 34, 419, 838, 1481, 2962, 7123, 14246, 25177, 50354, 620539, 1241078, 10549163, 21098326]

約数ペア:

[(1, 21098326), (2, 10549163), (17, 1241078), (34, 620539), (419, 50354), (838, 25177), (1481, 14246), (2962, 7123)]