21141284

素因数分解:

$2^2\times {\mathrm{1321}}^1\times {\mathrm{4001}}^1$

素因数の和:5326

約数の個数: 12

約数和(自身を含む): 37034508

約数和(自身を除く): 15893224

約数列:

[1, 2, 4, 1321, 2642, 4001, 5284, 8002, 16004, 5285321, 10570642, 21141284]

約数ペア:

[(1, 21141284), (2, 10570642), (4, 5285321), (1321, 16004), (2642, 8002), (4001, 5284)]