20875545

素因数分解:

$3^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{887}}^1$

素因数の和:1421

約数の個数: 24

約数和(自身を含む): 36294336

約数和(自身を除く): 15418791

約数列:

[1, 3, 5, 9, 15, 45, 523, 887, 1569, 2615, 2661, 4435, 4707, 7845, 7983, 13305, 23535, 39915, 463901, 1391703, 2319505, 4175109, 6958515, 20875545]

約数ペア:

[(1, 20875545), (3, 6958515), (5, 4175109), (9, 2319505), (15, 1391703), (45, 463901), (523, 39915), (887, 23535), (1569, 13305), (2615, 7983), (2661, 7845), (4435, 4707)]