21073268

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7207}}^1$

素因数の和:7271

約数の個数: 24

約数和(自身を含む): 39961152

約数和(自身を除く): 18887884

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 7207, 14414, 28828, 122519, 245038, 309901, 490076, 619802, 1239604, 5268317, 10536634, 21073268]

約数ペア:

[(1, 21073268), (2, 10536634), (4, 5268317), (17, 1239604), (34, 619802), (43, 490076), (68, 309901), (86, 245038), (172, 122519), (731, 28828), (1462, 14414), (2924, 7207)]