20742777

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 33784320

約数和(自身を除く): 13041543

約数列:

[1, 3, 9, 11, 27, 33, 99, 211, 297, 331, 633, 993, 1899, 2321, 2979, 3641, 5697, 6963, 8937, 10923, 20889, 32769, 62667, 69841, 98307, 209523, 628569, 768251, 1885707, 2304753, 6914259, 20742777]

約数ペア:

[(1, 20742777), (3, 6914259), (9, 2304753), (11, 1885707), (27, 768251), (33, 628569), (99, 209523), (211, 98307), (297, 69841), (331, 62667), (633, 32769), (993, 20889), (1899, 10923), (2321, 8937), (2979, 6963), (3641, 5697)]