20843745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 36220800

約数和(自身を除く): 15377055

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 769, 1807, 2085, 2307, 3845, 5421, 9035, 9997, 11535, 27105, 29991, 49985, 106891, 149955, 320673, 534455, 1389583, 1603365, 4168749, 6947915, 20843745]

約数ペア:

[(1, 20843745), (3, 6947915), (5, 4168749), (13, 1603365), (15, 1389583), (39, 534455), (65, 320673), (139, 149955), (195, 106891), (417, 49985), (695, 29991), (769, 27105), (1807, 11535), (2085, 9997), (2307, 9035), (3845, 5421)]