391004889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{463}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 577112064

約数和(自身を除く): 186107175

約数列:

[1, 3, 11, 33, 157, 163, 463, 471, 489, 1389, 1727, 1793, 5093, 5181, 5379, 15279, 25591, 72691, 75469, 76773, 218073, 226407, 281501, 799601, 830159, 844503, 2398803, 2490477, 11848633, 35545899, 130334963, 391004889]

約数ペア:

[(1, 391004889), (3, 130334963), (11, 35545899), (33, 11848633), (157, 2490477), (163, 2398803), (463, 844503), (471, 830159), (489, 799601), (1389, 281501), (1727, 226407), (1793, 218073), (5093, 76773), (5181, 75469), (5379, 72691), (15279, 25591)]