81215901

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{1861}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 126742616

約数和(自身を除く): 45526715

約数列:

[1, 3, 9, 13, 39, 117, 373, 1119, 1861, 3357, 4849, 5583, 14547, 16749, 24193, 43641, 72579, 217737, 694153, 2082459, 6247377, 9023989, 27071967, 81215901]

約数ペア:

[(1, 81215901), (3, 27071967), (9, 9023989), (13, 6247377), (39, 2082459), (117, 694153), (373, 217737), (1119, 72579), (1861, 43641), (3357, 24193), (4849, 16749), (5583, 14547)]