81381261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{937}}^1$

素因数の和:1101

約数の個数: 32

約数和(自身を含む): 124806528

約数和(自身を除く): 43425267

約数列:

[1, 3, 13, 17, 39, 51, 131, 221, 393, 663, 937, 1703, 2227, 2811, 5109, 6681, 12181, 15929, 28951, 36543, 47787, 86853, 122747, 207077, 368241, 621231, 1595711, 2086699, 4787133, 6260097, 27127087, 81381261]

約数ペア:

[(1, 81381261), (3, 27127087), (13, 6260097), (17, 4787133), (39, 2086699), (51, 1595711), (131, 621231), (221, 368241), (393, 207077), (663, 122747), (937, 86853), (1703, 47787), (2227, 36543), (2811, 28951), (5109, 15929), (6681, 12181)]