19724122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{28921}}^1$

素因数の和:28965

約数の個数: 16

約数和(自身を含む): 33318144

約数和(自身を除く): 13594022

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 28921, 57842, 318131, 636262, 896551, 1793102, 9862061, 19724122]

約数ペア:

[(1, 19724122), (2, 9862061), (11, 1793102), (22, 896551), (31, 636262), (62, 318131), (341, 57842), (682, 28921)]