2783181891

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{137911}}^1$

素因数の和:137983

約数の個数: 24

約数和(自身を含む): 4382291712

約数和(自身を除く): 1599109821

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 961, 2883, 6727, 20181, 137911, 413733, 965377, 2896131, 4275241, 12825723, 29926687, 89780061, 132532471, 397597413, 927727297, 2783181891]

約数ペア:

[(1, 2783181891), (3, 927727297), (7, 397597413), (21, 132532471), (31, 89780061), (93, 29926687), (217, 12825723), (651, 4275241), (961, 2896131), (2883, 965377), (6727, 413733), (20181, 137911)]