21327976

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39791}}^1$

素因数の和:39864

約数の個数: 16

約数和(自身を含む): 40587840

約数和(自身を除く): 19259864

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39791, 79582, 159164, 318328, 2665997, 5331994, 10663988, 21327976]

約数ペア:

[(1, 21327976), (2, 10663988), (4, 5331994), (8, 2665997), (67, 318328), (134, 159164), (268, 79582), (536, 39791)]