19991367

素因数分解:

$3^8\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:312

約数の個数: 36

約数和(自身を含む): 32829576

約数和(自身を除く): 12838209

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 277, 297, 729, 831, 891, 2187, 2493, 2673, 3047, 6561, 7479, 8019, 9141, 22437, 24057, 27423, 67311, 72171, 82269, 201933, 246807, 605799, 740421, 1817397, 2221263, 6663789, 19991367]

約数ペア:

[(1, 19991367), (3, 6663789), (9, 2221263), (11, 1817397), (27, 740421), (33, 605799), (81, 246807), (99, 201933), (243, 82269), (277, 72171), (297, 67311), (729, 27423), (831, 24057), (891, 22437), (2187, 9141), (2493, 8019), (2673, 7479), (3047, 6561)]