21605793

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 35043840

約数和(自身を除く): 13438047

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 187, 209, 323, 561, 627, 969, 2027, 3553, 6081, 10659, 22297, 34459, 38513, 66891, 103377, 115539, 379049, 423643, 654721, 1137147, 1270929, 1964163, 7201931, 21605793]

約数ペア:

[(1, 21605793), (3, 7201931), (11, 1964163), (17, 1270929), (19, 1137147), (33, 654721), (51, 423643), (57, 379049), (187, 115539), (209, 103377), (323, 66891), (561, 38513), (627, 34459), (969, 22297), (2027, 10659), (3553, 6081)]