21290969439

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{9949}}^1$

素因数の和:10240

約数の個数: 48

約数和(自身を含む): 33192244800

約数和(自身を除く): 11901275361

約数列:

[1, 3, 9, 17, 51, 71, 153, 197, 213, 591, 639, 1207, 1773, 3349, 3621, 9949, 10047, 10863, 13987, 29847, 30141, 41961, 89541, 125883, 169133, 237779, 507399, 706379, 713337, 1522197, 1959953, 2119137, 2140011, 5879859, 6357411, 12008443, 17639577, 33319201, 36025329, 99957603, 108075987, 139156663, 299872809, 417469989, 1252409967, 2365663271, 7096989813, 21290969439]

約数ペア:

[(1, 21290969439), (3, 7096989813), (9, 2365663271), (17, 1252409967), (51, 417469989), (71, 299872809), (153, 139156663), (197, 108075987), (213, 99957603), (591, 36025329), (639, 33319201), (1207, 17639577), (1773, 12008443), (3349, 6357411), (3621, 5879859), (9949, 2140011), (10047, 2119137), (10863, 1959953), (13987, 1522197), (29847, 713337), (30141, 706379), (41961, 507399), (89541, 237779), (125883, 169133)]