19878328

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{27919}}^1$

素因数の和:28014

約数の個数: 16

約数和(自身を含む): 37692000

約数和(自身を除く): 17813672

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 27919, 55838, 111676, 223352, 2484791, 4969582, 9939164, 19878328]

約数ペア:

[(1, 19878328), (2, 9939164), (4, 4969582), (8, 2484791), (89, 223352), (178, 111676), (356, 55838), (712, 27919)]