215025921

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{647}}^1$

素因数の和:1043

約数の個数: 40

約数和(自身を含む): 351895104

約数和(自身を除く): 136869183

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 373, 647, 891, 1119, 1941, 3357, 4103, 5823, 7117, 10071, 12309, 17469, 21351, 30213, 36927, 52407, 64053, 110781, 192159, 241331, 332343, 576477, 723993, 2171979, 2654641, 6515937, 7963923, 19547811, 23891769, 71675307, 215025921]

約数ペア:

[(1, 215025921), (3, 71675307), (9, 23891769), (11, 19547811), (27, 7963923), (33, 6515937), (81, 2654641), (99, 2171979), (297, 723993), (373, 576477), (647, 332343), (891, 241331), (1119, 192159), (1941, 110781), (3357, 64053), (4103, 52407), (5823, 36927), (7117, 30213), (10071, 21351), (12309, 17469)]