18138681

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 29577600

約数和(自身を除く): 11438919

約数列:

[1, 3, 9, 11, 27, 33, 99, 157, 297, 389, 471, 1167, 1413, 1727, 3501, 4239, 4279, 5181, 10503, 12837, 15543, 38511, 46629, 61073, 115533, 183219, 549657, 671803, 1648971, 2015409, 6046227, 18138681]

約数ペア:

[(1, 18138681), (3, 6046227), (9, 2015409), (11, 1648971), (27, 671803), (33, 549657), (99, 183219), (157, 115533), (297, 61073), (389, 46629), (471, 38511), (1167, 15543), (1413, 12837), (1727, 10503), (3501, 5181), (4239, 4279)]