12211355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 17164224

約数和(自身を除く): 4952869

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 257, 559, 731, 1105, 1285, 2795, 3341, 3655, 4369, 9503, 11051, 16705, 21845, 47515, 55255, 56797, 143663, 187867, 283985, 718315, 939335, 2442271, 12211355]

約数ペア:

[(1, 12211355), (5, 2442271), (13, 939335), (17, 718315), (43, 283985), (65, 187867), (85, 143663), (215, 56797), (221, 55255), (257, 47515), (559, 21845), (731, 16705), (1105, 11051), (1285, 9503), (2795, 4369), (3341, 3655)]