20287683

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{547}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 31716048

約数和(自身を除く): 11428365

約数列:

[1, 3, 9, 13, 39, 117, 317, 547, 951, 1641, 2853, 4121, 4923, 7111, 12363, 21333, 37089, 63999, 173399, 520197, 1560591, 2254187, 6762561, 20287683]

約数ペア:

[(1, 20287683), (3, 6762561), (9, 2254187), (13, 1560591), (39, 520197), (117, 173399), (317, 63999), (547, 37089), (951, 21333), (1641, 12363), (2853, 7111), (4121, 4923)]