21390114

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{209707}}^1$

素因数の和:209729

約数の個数: 16

約数和(自身を含む): 45296928

約数和(自身を除く): 23906814

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 209707, 419414, 629121, 1258242, 3565019, 7130038, 10695057, 21390114]

約数ペア:

[(1, 21390114), (2, 10695057), (3, 7130038), (6, 3565019), (17, 1258242), (34, 629121), (51, 419414), (102, 209707)]