21207208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4547}}^1$

素因数の和:4617

約数の個数: 32

約数和(自身を含む): 44206560

約数和(自身を除く): 22999352

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4547, 4664, 9094, 18188, 36376, 50017, 100034, 200068, 240991, 400136, 481982, 963964, 1927928, 2650901, 5301802, 10603604, 21207208]

約数ペア:

[(1, 21207208), (2, 10603604), (4, 5301802), (8, 2650901), (11, 1927928), (22, 963964), (44, 481982), (53, 400136), (88, 240991), (106, 200068), (212, 100034), (424, 50017), (583, 36376), (1166, 18188), (2332, 9094), (4547, 4664)]