81989011

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 95071760

約数和(自身を除く): 13082749

約数列:

[1, 13, 17, 139, 157, 221, 289, 1807, 2041, 2363, 2669, 3757, 21823, 30719, 34697, 40171, 45373, 283699, 370991, 522223, 589849, 4822883, 6306847, 81989011]

約数ペア:

[(1, 81989011), (13, 6306847), (17, 4822883), (139, 589849), (157, 522223), (221, 370991), (289, 283699), (1807, 45373), (2041, 40171), (2363, 34697), (2669, 30719), (3757, 21823)]