81904418

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{19717}}^1$

素因数の和:19817

約数の個数: 16

約数和(自身を含む): 128719104

約数和(自身を除く): 46814686

約数列:

[1, 2, 31, 62, 67, 134, 2077, 4154, 19717, 39434, 611227, 1222454, 1321039, 2642078, 40952209, 81904418]

約数ペア:

[(1, 81904418), (2, 40952209), (31, 2642078), (62, 1321039), (67, 1222454), (134, 611227), (2077, 39434), (4154, 19717)]