261575991

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{28027}}^1$

素因数の和:28111

約数の個数: 24

約数和(自身を含む): 406630224

約数和(自身を除く): 145054233

約数列:

[1, 3, 9, 17, 51, 61, 153, 183, 549, 1037, 3111, 9333, 28027, 84081, 252243, 476459, 1429377, 1709647, 4288131, 5128941, 15386823, 29063999, 87191997, 261575991]

約数ペア:

[(1, 261575991), (3, 87191997), (9, 29063999), (17, 15386823), (51, 5128941), (61, 4288131), (153, 1709647), (183, 1429377), (549, 476459), (1037, 252243), (3111, 84081), (9333, 28027)]