20478255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1931}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 17358033

約数列:

[1, 3, 5, 7, 15, 21, 35, 101, 105, 303, 505, 707, 1515, 1931, 2121, 3535, 5793, 9655, 10605, 13517, 28965, 40551, 67585, 195031, 202755, 585093, 975155, 1365217, 2925465, 4095651, 6826085, 20478255]

約数ペア:

[(1, 20478255), (3, 6826085), (5, 4095651), (7, 2925465), (15, 1365217), (21, 975155), (35, 585093), (101, 202755), (105, 195031), (303, 67585), (505, 40551), (707, 28965), (1515, 13517), (1931, 10605), (2121, 9655), (3535, 5793)]