21875105

素因数分解:

$5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{5531}}^1$

素因数の和:5656

約数の個数: 16

約数和(自身を含む): 30271104

約数和(自身を除く): 8395999

約数列:

[1, 5, 7, 35, 113, 565, 791, 3955, 5531, 27655, 38717, 193585, 625003, 3125015, 4375021, 21875105]

約数ペア:

[(1, 21875105), (5, 4375021), (7, 3125015), (35, 625003), (113, 193585), (565, 38717), (791, 27655), (3955, 5531)]