161220631

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 196213248

約数和(自身を除く): 34992617

約数列:

[1, 11, 13, 43, 143, 157, 167, 473, 559, 1727, 1837, 2041, 2171, 6149, 6751, 7181, 22451, 23881, 26219, 74261, 78991, 87763, 93353, 288409, 340847, 965393, 1026883, 1127417, 3749317, 12401587, 14656421, 161220631]

約数ペア:

[(1, 161220631), (11, 14656421), (13, 12401587), (43, 3749317), (143, 1127417), (157, 1026883), (167, 965393), (473, 340847), (559, 288409), (1727, 93353), (1837, 87763), (2041, 78991), (2171, 74261), (6149, 26219), (6751, 23881), (7181, 22451)]