215202471

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1\times {\mathrm{523}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 323052288

約数和(自身を除く): 107849817

約数列:

[1, 3, 11, 33, 37, 111, 337, 407, 523, 1011, 1221, 1569, 3707, 5753, 11121, 12469, 17259, 19351, 37407, 58053, 137159, 176251, 212861, 411477, 528753, 638583, 1938761, 5816283, 6521287, 19563861, 71734157, 215202471]

約数ペア:

[(1, 215202471), (3, 71734157), (11, 19563861), (33, 6521287), (37, 5816283), (111, 1938761), (337, 638583), (407, 528753), (523, 411477), (1011, 212861), (1221, 176251), (1569, 137159), (3707, 58053), (5753, 37407), (11121, 19351), (12469, 17259)]