20839545

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5323}}^1$

素因数の和:5366

約数の個数: 32

約数和(自身を含む): 38332800

約数和(自身を除く): 17493255

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5323, 15969, 26615, 47907, 79845, 143721, 154367, 239535, 463101, 718605, 771835, 1389303, 2315505, 4167909, 6946515, 20839545]

約数ペア:

[(1, 20839545), (3, 6946515), (5, 4167909), (9, 2315505), (15, 1389303), (27, 771835), (29, 718605), (45, 463101), (87, 239535), (135, 154367), (145, 143721), (261, 79845), (435, 47907), (783, 26615), (1305, 15969), (3915, 5323)]