12800781

素因数分解:

$3^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:866

約数の個数: 32

約数和(自身を含む): 21945600

約数和(自身を除く): 9144819

約数列:

[1, 3, 7, 9, 21, 27, 63, 89, 189, 267, 623, 761, 801, 1869, 2283, 2403, 5327, 5607, 6849, 15981, 16821, 20547, 47943, 67729, 143829, 203187, 474103, 609561, 1422309, 1828683, 4266927, 12800781]

約数ペア:

[(1, 12800781), (3, 4266927), (7, 1828683), (9, 1422309), (21, 609561), (27, 474103), (63, 203187), (89, 143829), (189, 67729), (267, 47943), (623, 20547), (761, 16821), (801, 15981), (1869, 6849), (2283, 5607), (2403, 5327)]