21300568

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37501}}^1$

素因数の和:37578

約数の個数: 16

約数和(自身を含む): 40502160

約数和(自身を除く): 19201592

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37501, 75002, 150004, 300008, 2662571, 5325142, 10650284, 21300568]

約数ペア:

[(1, 21300568), (2, 10650284), (4, 5325142), (8, 2662571), (71, 300008), (142, 150004), (284, 75002), (568, 37501)]