20509755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6301}}^1$

素因数の和:6347

約数の個数: 32

約数和(自身を含む): 38719488

約数和(自身を除く): 18209733

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6301, 18903, 31505, 44107, 94515, 132321, 195331, 220535, 585993, 661605, 976655, 1367317, 2929965, 4101951, 6836585, 20509755]

約数ペア:

[(1, 20509755), (3, 6836585), (5, 4101951), (7, 2929965), (15, 1367317), (21, 976655), (31, 661605), (35, 585993), (93, 220535), (105, 195331), (155, 132321), (217, 94515), (465, 44107), (651, 31505), (1085, 18903), (3255, 6301)]