28808374

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{12781}}^1$

素因数の和:12820

約数の個数: 24

約数和(自身を含む): 52457328

約数和(自身を除く): 23648954

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 1127, 2254, 12781, 25562, 89467, 178934, 293963, 587926, 626269, 1252538, 2057741, 4115482, 14404187, 28808374]

約数ペア:

[(1, 28808374), (2, 14404187), (7, 4115482), (14, 2057741), (23, 1252538), (46, 626269), (49, 587926), (98, 293963), (161, 178934), (322, 89467), (1127, 25562), (2254, 12781)]