21176078

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137507}}^1$

素因数の和:137527

約数の個数: 16

約数和(自身を含む): 39602304

約数和(自身を除く): 18426226

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137507, 275014, 962549, 1512577, 1925098, 3025154, 10588039, 21176078]

約数ペア:

[(1, 21176078), (2, 10588039), (7, 3025154), (11, 1925098), (14, 1512577), (22, 962549), (77, 275014), (154, 137507)]