7271721

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 11491200

約数和(自身を除く): 4219479

約数列:

[1, 3, 9, 27, 29, 37, 87, 111, 251, 261, 333, 753, 783, 999, 1073, 2259, 3219, 6777, 7279, 9287, 9657, 21837, 27861, 28971, 65511, 83583, 196533, 250749, 269323, 807969, 2423907, 7271721]

約数ペア:

[(1, 7271721), (3, 2423907), (9, 807969), (27, 269323), (29, 250749), (37, 196533), (87, 83583), (111, 65511), (251, 28971), (261, 27861), (333, 21837), (753, 9657), (783, 9287), (999, 7279), (1073, 6777), (2259, 3219)]