20318445

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{2389}}^1$

素因数の和:2416

約数の個数: 48

約数和(自身を含む): 41758080

約数和(自身を除く): 21439635

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2389, 2835, 7167, 8505, 11945, 16723, 21501, 35835, 50169, 64503, 83615, 107505, 150507, 193509, 250845, 322515, 451521, 580527, 752535, 967545, 1354563, 2257605, 2902635, 4063689, 6772815, 20318445]

約数ペア:

[(1, 20318445), (3, 6772815), (5, 4063689), (7, 2902635), (9, 2257605), (15, 1354563), (21, 967545), (27, 752535), (35, 580527), (45, 451521), (63, 322515), (81, 250845), (105, 193509), (135, 150507), (189, 107505), (243, 83615), (315, 64503), (405, 50169), (567, 35835), (945, 21501), (1215, 16723), (1701, 11945), (2389, 8505), (2835, 7167)]