20819595

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 34574400

約数和(自身を除く): 13754805

約数列:

[1, 3, 5, 15, 41, 97, 123, 205, 291, 349, 485, 615, 1047, 1455, 1745, 3977, 5235, 11931, 14309, 19885, 33853, 42927, 59655, 71545, 101559, 169265, 214635, 507795, 1387973, 4163919, 6939865, 20819595]

約数ペア:

[(1, 20819595), (3, 6939865), (5, 4163919), (15, 1387973), (41, 507795), (97, 214635), (123, 169265), (205, 101559), (291, 71545), (349, 59655), (485, 42927), (615, 33853), (1047, 19885), (1455, 14309), (1745, 11931), (3977, 5235)]