20922993

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 16991247

約数列:

[1, 3, 7, 9, 13, 21, 39, 59, 63, 91, 117, 177, 273, 413, 433, 531, 767, 819, 1239, 1299, 2301, 3031, 3717, 3897, 5369, 5629, 6903, 9093, 16107, 16887, 25547, 27279, 39403, 48321, 50661, 76641, 118209, 178829, 229923, 332111, 354627, 536487, 996333, 1609461, 2324777, 2988999, 6974331, 20922993]

約数ペア:

[(1, 20922993), (3, 6974331), (7, 2988999), (9, 2324777), (13, 1609461), (21, 996333), (39, 536487), (59, 354627), (63, 332111), (91, 229923), (117, 178829), (177, 118209), (273, 76641), (413, 50661), (433, 48321), (531, 39403), (767, 27279), (819, 25547), (1239, 16887), (1299, 16107), (2301, 9093), (3031, 6903), (3717, 5629), (3897, 5369)]