20449089

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1667}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 31224960

約数和(自身を除く): 10775871

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1667, 4089, 5001, 12267, 15003, 48343, 78349, 145029, 235047, 435087, 705141, 2272121, 6816363, 20449089]

約数ペア:

[(1, 20449089), (3, 6816363), (9, 2272121), (29, 705141), (47, 435087), (87, 235047), (141, 145029), (261, 78349), (423, 48343), (1363, 15003), (1667, 12267), (4089, 5001)]