18359109

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 28212480

約数和(自身を除く): 9853371

約数列:

[1, 3, 9, 27, 61, 71, 157, 183, 213, 471, 549, 639, 1413, 1647, 1917, 4239, 4331, 9577, 11147, 12993, 28731, 33441, 38979, 86193, 100323, 116937, 258579, 300969, 679967, 2039901, 6119703, 18359109]

約数ペア:

[(1, 18359109), (3, 6119703), (9, 2039901), (27, 679967), (61, 300969), (71, 258579), (157, 116937), (183, 100323), (213, 86193), (471, 38979), (549, 33441), (639, 28731), (1413, 12993), (1647, 11147), (1917, 9577), (4239, 4331)]