20266407

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16931}}^1$

素因数の和:16963

約数の個数: 24

約数和(自身を含む): 35218560

約数和(自身を除く): 14952153

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16931, 50793, 118517, 152379, 321689, 355551, 965067, 1066653, 2251823, 2895201, 6755469, 20266407]

約数ペア:

[(1, 20266407), (3, 6755469), (7, 2895201), (9, 2251823), (19, 1066653), (21, 965067), (57, 355551), (63, 321689), (133, 152379), (171, 118517), (399, 50793), (1197, 16931)]