20865999

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1531}}^1$

素因数の和:1611

約数の個数: 32

約数和(自身を含む): 35297280

約数和(自身を除く): 14431281

約数列:

[1, 3, 7, 11, 21, 33, 59, 77, 177, 231, 413, 649, 1239, 1531, 1947, 4543, 4593, 10717, 13629, 16841, 32151, 50523, 90329, 117887, 270987, 353661, 632303, 993619, 1896909, 2980857, 6955333, 20865999]

約数ペア:

[(1, 20865999), (3, 6955333), (7, 2980857), (11, 1896909), (21, 993619), (33, 632303), (59, 353661), (77, 270987), (177, 117887), (231, 90329), (413, 50523), (649, 32151), (1239, 16841), (1531, 13629), (1947, 10717), (4543, 4593)]