21509071

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 23482368

約数和(自身を除く): 1973297

約数列:

[1, 23, 31, 97, 311, 713, 2231, 3007, 7153, 9641, 30167, 69161, 221743, 693841, 935177, 21509071]

約数ペア:

[(1, 21509071), (23, 935177), (31, 693841), (97, 221743), (311, 69161), (713, 30167), (2231, 9641), (3007, 7153)]