21868568

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{38501}}^1$

素因数の和:38578

約数の個数: 16

約数和(自身を含む): 41582160

約数和(自身を除く): 19713592

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 38501, 77002, 154004, 308008, 2733571, 5467142, 10934284, 21868568]

約数ペア:

[(1, 21868568), (2, 10934284), (4, 5467142), (8, 2733571), (71, 308008), (142, 154004), (284, 77002), (568, 38501)]