21054770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{691}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 41553216

約数和(自身を除く): 20498446

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 277, 554, 691, 1382, 1385, 2770, 3047, 3455, 6094, 6910, 7601, 15202, 15235, 30470, 38005, 76010, 191407, 382814, 957035, 1914070, 2105477, 4210954, 10527385, 21054770]

約数ペア:

[(1, 21054770), (2, 10527385), (5, 4210954), (10, 2105477), (11, 1914070), (22, 957035), (55, 382814), (110, 191407), (277, 76010), (554, 38005), (691, 30470), (1382, 15235), (1385, 15202), (2770, 7601), (3047, 6910), (3455, 6094)]