81173565

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163987}}^1$

素因数の和:164009

約数の個数: 24

約数和(自身を含む): 153492768

約数和(自身を除く): 72319203

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 163987, 491961, 819935, 1475883, 1803857, 2459805, 5411571, 7379415, 9019285, 16234713, 27057855, 81173565]

約数ペア:

[(1, 81173565), (3, 27057855), (5, 16234713), (9, 9019285), (11, 7379415), (15, 5411571), (33, 2459805), (45, 1803857), (55, 1475883), (99, 819935), (165, 491961), (495, 163987)]