31987109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3271}}^1$

素因数の和:3416

約数の個数: 16

約数和(自身を含む): 40206336

約数和(自身を除く): 8219227

約数列:

[1, 7, 11, 77, 127, 889, 1397, 3271, 9779, 22897, 35981, 251867, 415417, 2907919, 4569587, 31987109]

約数ペア:

[(1, 31987109), (7, 4569587), (11, 2907919), (77, 415417), (127, 251867), (889, 35981), (1397, 22897), (3271, 9779)]