12991797

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 23936640

約数和(自身を除く): 10944843

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 547, 609, 819, 1131, 1641, 1827, 2639, 3393, 3829, 4923, 7111, 7917, 11487, 15863, 21333, 23751, 34461, 47589, 49777, 63999, 111041, 142767, 149331, 206219, 333123, 447993, 618657, 999369, 1443533, 1855971, 4330599, 12991797]

約数ペア:

[(1, 12991797), (3, 4330599), (7, 1855971), (9, 1443533), (13, 999369), (21, 618657), (29, 447993), (39, 333123), (63, 206219), (87, 149331), (91, 142767), (117, 111041), (203, 63999), (261, 49777), (273, 47589), (377, 34461), (547, 23751), (609, 21333), (819, 15863), (1131, 11487), (1641, 7917), (1827, 7111), (2639, 4923), (3393, 3829)]