21060076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{309707}}^1$

素因数の和:309728

約数の個数: 12

約数和(自身を含む): 39023208

約数和(自身を除く): 17963132

約数列:

[1, 2, 4, 17, 34, 68, 309707, 619414, 1238828, 5265019, 10530038, 21060076]

約数ペア:

[(1, 21060076), (2, 10530038), (4, 5265019), (17, 1238828), (34, 619414), (68, 309707)]