81019988

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{3011}}^1$

素因数の和:3084

約数の個数: 36

約数和(自身を含む): 167491296

約数和(自身を除く): 86471308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 961, 1922, 3011, 3844, 6022, 6727, 12044, 13454, 21077, 26908, 42154, 84308, 93341, 186682, 373364, 653387, 1306774, 2613548, 2893571, 5787142, 11574284, 20254997, 40509994, 81019988]

約数ペア:

[(1, 81019988), (2, 40509994), (4, 20254997), (7, 11574284), (14, 5787142), (28, 2893571), (31, 2613548), (62, 1306774), (124, 653387), (217, 373364), (434, 186682), (868, 93341), (961, 84308), (1922, 42154), (3011, 26908), (3844, 21077), (6022, 13454), (6727, 12044)]