81009879

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 115530240

約数和(自身を除く): 34520361

約数列:

[1, 3, 17, 51, 223, 289, 419, 669, 867, 1257, 3791, 7123, 11373, 21369, 64447, 93437, 121091, 193341, 280311, 363273, 1588429, 4765287, 27003293, 81009879]

約数ペア:

[(1, 81009879), (3, 27003293), (17, 4765287), (51, 1588429), (223, 363273), (289, 280311), (419, 193341), (669, 121091), (867, 93437), (1257, 64447), (3791, 21369), (7123, 11373)]