18676287

素因数分解:

$3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{569}}^1$

素因数の和:1103

約数の個数: 24

約数和(自身を含む): 30944160

約数和(自身を除く): 12267873

約数列:

[1, 3, 7, 9, 21, 63, 521, 569, 1563, 1707, 3647, 3983, 4689, 5121, 10941, 11949, 32823, 35847, 296449, 889347, 2075143, 2668041, 6225429, 18676287]

約数ペア:

[(1, 18676287), (3, 6225429), (7, 2668041), (9, 2075143), (21, 889347), (63, 296449), (521, 35847), (569, 32823), (1563, 11949), (1707, 10941), (3647, 5121), (3983, 4689)]