20383517

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2621}}^1$

素因数の和:2740

約数の個数: 16

約数和(自身を含む): 25674624

約数和(自身を除く): 5291107

約数列:

[1, 7, 11, 77, 101, 707, 1111, 2621, 7777, 18347, 28831, 201817, 264721, 1853047, 2911931, 20383517]

約数ペア:

[(1, 20383517), (7, 2911931), (11, 1853047), (77, 264721), (101, 201817), (707, 28831), (1111, 18347), (2621, 7777)]