19991330337

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2549}}^1\times {\mathrm{5527}}^1$

素因数の和:8133

約数の個数: 32

約数和(自身を含む): 29771596800

約数和(自身を除く): 9780266463

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 2549, 5527, 7647, 16581, 28039, 60797, 84117, 109607, 182391, 237661, 328821, 712983, 1205677, 2614271, 3617031, 7842813, 14088323, 42264969, 154971553, 464914659, 605797889, 1817393667, 6663776779, 19991330337]

約数ペア:

[(1, 19991330337), (3, 6663776779), (11, 1817393667), (33, 605797889), (43, 464914659), (129, 154971553), (473, 42264969), (1419, 14088323), (2549, 7842813), (5527, 3617031), (7647, 2614271), (16581, 1205677), (28039, 712983), (60797, 328821), (84117, 237661), (109607, 182391)]