81211545

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4391}}^1$

素因数の和:4542

約数の個数: 32

約数和(自身を含む): 145463040

約数和(自身を除く): 64251495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 1233, 2055, 3699, 4391, 6165, 13173, 18495, 21955, 39519, 65865, 118557, 197595, 592785, 601567, 1804701, 3007835, 5414103, 9023505, 16242309, 27070515, 81211545]

約数ペア:

[(1, 81211545), (3, 27070515), (5, 16242309), (9, 9023505), (15, 5414103), (27, 3007835), (45, 1804701), (135, 601567), (137, 592785), (411, 197595), (685, 118557), (1233, 65865), (2055, 39519), (3699, 21955), (4391, 18495), (6165, 13173)]