18439281

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{601}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 30552704

約数和(自身を除く): 12113423

約数列:

[1, 3, 7, 9, 21, 63, 487, 601, 1461, 1803, 3409, 4207, 4383, 5409, 10227, 12621, 30681, 37863, 292687, 878061, 2048809, 2634183, 6146427, 18439281]

約数ペア:

[(1, 18439281), (3, 6146427), (7, 2634183), (9, 2048809), (21, 878061), (63, 292687), (487, 37863), (601, 30681), (1461, 12621), (1803, 10227), (3409, 5409), (4207, 4383)]