27991495

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2719

約数の個数: 24

約数和(自身を含む): 39997584

約数和(自身を除く): 12006089

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 2107, 2657, 10535, 13285, 18599, 92995, 114251, 130193, 571255, 650965, 799757, 3998785, 5598299, 27991495]

約数ペア:

[(1, 27991495), (5, 5598299), (7, 3998785), (35, 799757), (43, 650965), (49, 571255), (215, 130193), (245, 114251), (301, 92995), (1505, 18599), (2107, 13285), (2657, 10535)]