219389611

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{2531}}^1$

素因数の和:2635

約数の個数: 24

約数和(自身を含む): 268442640

約数和(自身を除く): 49053029

約数列:

[1, 7, 29, 49, 61, 203, 427, 1421, 1769, 2531, 2989, 12383, 17717, 73399, 86681, 124019, 154391, 513793, 1080737, 3596551, 4477339, 7565159, 31341373, 219389611]

約数ペア:

[(1, 219389611), (7, 31341373), (29, 7565159), (49, 4477339), (61, 3596551), (203, 1080737), (427, 513793), (1421, 154391), (1769, 124019), (2531, 86681), (2989, 73399), (12383, 17717)]