20748009

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 30030336

約数和(自身を除く): 9282327

約数列:

[1, 3, 37, 41, 47, 97, 111, 123, 141, 291, 1517, 1739, 1927, 3589, 3977, 4551, 4559, 5217, 5781, 10767, 11931, 13677, 71299, 147149, 168683, 186919, 213897, 441447, 506049, 560757, 6916003, 20748009]

約数ペア:

[(1, 20748009), (3, 6916003), (37, 560757), (41, 506049), (47, 441447), (97, 213897), (111, 186919), (123, 168683), (141, 147149), (291, 71299), (1517, 13677), (1739, 11931), (1927, 10767), (3589, 5781), (3977, 5217), (4551, 4559)]