12640639

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2939}}^1$

素因数の和:2990

約数の個数: 16

約数和(自身を含む): 15240960

約数和(自身を除く): 2600321

約数列:

[1, 11, 17, 23, 187, 253, 391, 2939, 4301, 32329, 49963, 67597, 549593, 743567, 1149149, 12640639]

約数ペア:

[(1, 12640639), (11, 1149149), (17, 743567), (23, 549593), (187, 67597), (253, 49963), (391, 32329), (2939, 4301)]