12561813

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 19918080

約数和(自身を除く): 7356267

約数列:

[1, 3, 9, 11, 33, 99, 223, 569, 669, 1707, 2007, 2453, 5121, 6259, 7359, 18777, 22077, 56331, 126887, 380661, 1141983, 1395757, 4187271, 12561813]

約数ペア:

[(1, 12561813), (3, 4187271), (9, 1395757), (11, 1141983), (33, 380661), (99, 126887), (223, 56331), (569, 22077), (669, 18777), (1707, 7359), (2007, 6259), (2453, 5121)]