21280812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{253343}}^1$

素因数の和:253357

約数の個数: 24

約数和(自身を含む): 56749056

約数和(自身を除く): 35468244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 253343, 506686, 760029, 1013372, 1520058, 1773401, 3040116, 3546802, 5320203, 7093604, 10640406, 21280812]

約数ペア:

[(1, 21280812), (2, 10640406), (3, 7093604), (4, 5320203), (6, 3546802), (7, 3040116), (12, 1773401), (14, 1520058), (21, 1013372), (28, 760029), (42, 506686), (84, 253343)]