211065981

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{27091}}^1$

素因数の和:27161

約数の個数: 24

約数和(自身を含む): 333556704

約数和(自身を除く): 122490723

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 7791, 27091, 81273, 189637, 568911, 1327459, 1435823, 3982377, 4307469, 10050761, 30152283, 70355327, 211065981]

約数ペア:

[(1, 211065981), (3, 70355327), (7, 30152283), (21, 10050761), (49, 4307469), (53, 3982377), (147, 1435823), (159, 1327459), (371, 568911), (1113, 189637), (2597, 81273), (7791, 27091)]