21807272

素因数分解:

$2^3\times {\mathrm{211}}^1\times {\mathrm{12919}}^1$

素因数の和:13136

約数の個数: 16

約数和(自身を含む): 41085600

約数和(自身を除く): 19278328

約数列:

[1, 2, 4, 8, 211, 422, 844, 1688, 12919, 25838, 51676, 103352, 2725909, 5451818, 10903636, 21807272]

約数ペア:

[(1, 21807272), (2, 10903636), (4, 5451818), (8, 2725909), (211, 103352), (422, 51676), (844, 25838), (1688, 12919)]