171772785

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17921}}^1$

素因数の和:18006

約数の個数: 32

約数和(自身を含む): 309692160

約数和(自身を除く): 137919375

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 3195, 9585, 17921, 53763, 89605, 161289, 268815, 483867, 806445, 1272391, 2419335, 3817173, 6361955, 11451519, 19085865, 34354557, 57257595, 171772785]

約数ペア:

[(1, 171772785), (3, 57257595), (5, 34354557), (9, 19085865), (15, 11451519), (27, 6361955), (45, 3817173), (71, 2419335), (135, 1272391), (213, 806445), (355, 483867), (639, 268815), (1065, 161289), (1917, 89605), (3195, 53763), (9585, 17921)]