20538585

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14723}}^1$

素因数の和:14765

約数の個数: 24

約数和(自身を含む): 36751104

約数和(自身を除く): 16212519

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14723, 44169, 73615, 132507, 220845, 456413, 662535, 1369239, 2282065, 4107717, 6846195, 20538585]

約数ペア:

[(1, 20538585), (3, 6846195), (5, 4107717), (9, 2282065), (15, 1369239), (31, 662535), (45, 456413), (93, 220845), (155, 132507), (279, 73615), (465, 44169), (1395, 14723)]