1720929

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 2790720

約数和(自身を除く): 1069791

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 509, 1127, 1527, 3381, 3563, 10689, 11707, 24941, 35121, 74823, 81949, 245847, 573643, 1720929]

約数ペア:

[(1, 1720929), (3, 573643), (7, 245847), (21, 81949), (23, 74823), (49, 35121), (69, 24941), (147, 11707), (161, 10689), (483, 3563), (509, 3381), (1127, 1527)]