20577843

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15065037

約数列:

[1, 3, 9, 11, 13, 33, 39, 59, 99, 117, 143, 177, 271, 429, 531, 649, 767, 813, 1287, 1947, 2301, 2439, 2981, 3523, 5841, 6903, 8437, 8943, 10569, 15989, 25311, 26829, 31707, 38753, 47967, 75933, 116259, 143901, 175879, 207857, 348777, 527637, 623571, 1582911, 1870713, 2286427, 6859281, 20577843]

約数ペア:

[(1, 20577843), (3, 6859281), (9, 2286427), (11, 1870713), (13, 1582911), (33, 623571), (39, 527637), (59, 348777), (99, 207857), (117, 175879), (143, 143901), (177, 116259), (271, 75933), (429, 47967), (531, 38753), (649, 31707), (767, 26829), (813, 25311), (1287, 15989), (1947, 10569), (2301, 8943), (2439, 8437), (2981, 6903), (3523, 5841)]