139904235

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{17971}}^1$

素因数の和:18155

約数の個数: 24

約数和(自身を含む): 243915984

約数和(自身を除く): 104011749

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 17971, 53913, 89855, 161739, 269565, 808695, 3108983, 9326949, 15544915, 27980847, 46634745, 139904235]

約数ペア:

[(1, 139904235), (3, 46634745), (5, 27980847), (9, 15544915), (15, 9326949), (45, 3108983), (173, 808695), (519, 269565), (865, 161739), (1557, 89855), (2595, 53913), (7785, 17971)]