28039263

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2083}}^1$

素因数の和:2734

約数の個数: 16

約数和(自身を含む): 42813696

約数和(自身を除く): 14774433

約数列:

[1, 3, 7, 21, 641, 1923, 2083, 4487, 6249, 13461, 14581, 43743, 1335203, 4005609, 9346421, 28039263]

約数ペア:

[(1, 28039263), (3, 9346421), (7, 4005609), (21, 1335203), (641, 43743), (1923, 14581), (2083, 13461), (4487, 6249)]