165249

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 283712

約数和(自身を除く): 118463

約数列:

[1, 3, 7, 9, 21, 43, 61, 63, 129, 183, 301, 387, 427, 549, 903, 1281, 2623, 2709, 3843, 7869, 18361, 23607, 55083, 165249]

約数ペア:

[(1, 165249), (3, 55083), (7, 23607), (9, 18361), (21, 7869), (43, 3843), (61, 2709), (63, 2623), (129, 1281), (183, 903), (301, 549), (387, 427)]