18971774

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1$

素因数の和:2155

約数の個数: 16

約数和(自身を含む): 29334960

約数和(自身を除く): 10363186

約数列:

[1, 2, 53, 89, 106, 178, 2011, 4022, 4717, 9434, 106583, 178979, 213166, 357958, 9485887, 18971774]

約数ペア:

[(1, 18971774), (2, 9485887), (53, 357958), (89, 213166), (106, 178979), (178, 106583), (2011, 9434), (4022, 4717)]