21883784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210421}}^1$

素因数の和:210440

約数の個数: 16

約数和(自身を含む): 44188620

約数和(自身を除く): 22304836

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210421, 420842, 841684, 1683368, 2735473, 5470946, 10941892, 21883784]

約数ペア:

[(1, 21883784), (2, 10941892), (4, 5470946), (8, 2735473), (13, 1683368), (26, 841684), (52, 420842), (104, 210421)]