20397093

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 9711579

約数列:

[1, 3, 17, 43, 51, 71, 129, 131, 213, 393, 731, 1207, 2193, 2227, 3053, 3621, 5633, 6681, 9159, 9301, 16899, 27903, 51901, 95761, 155703, 158117, 287283, 399943, 474351, 1199829, 6799031, 20397093]

約数ペア:

[(1, 20397093), (3, 6799031), (17, 1199829), (43, 474351), (51, 399943), (71, 287283), (129, 158117), (131, 155703), (213, 95761), (393, 51901), (731, 27903), (1207, 16899), (2193, 9301), (2227, 9159), (3053, 6681), (3621, 5633)]