28292719

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 8479121

約数列:

[1, 7, 13, 29, 71, 91, 151, 203, 377, 497, 923, 1057, 1963, 2059, 2639, 4379, 6461, 10721, 13741, 14413, 26767, 30653, 56927, 75047, 139373, 187369, 310909, 398489, 975611, 2176363, 4041817, 28292719]

約数ペア:

[(1, 28292719), (7, 4041817), (13, 2176363), (29, 975611), (71, 398489), (91, 310909), (151, 187369), (203, 139373), (377, 75047), (497, 56927), (923, 30653), (1057, 26767), (1963, 14413), (2059, 13741), (2639, 10721), (4379, 6461)]