21300070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8419}}^1$

素因数の和:8460

約数の個数: 32

約数和(自身を含む): 43649280

約数和(自身を除く): 22349210

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8419, 16838, 42095, 84190, 92609, 185218, 193637, 387274, 463045, 926090, 968185, 1936370, 2130007, 4260014, 10650035, 21300070]

約数ペア:

[(1, 21300070), (2, 10650035), (5, 4260014), (10, 2130007), (11, 1936370), (22, 968185), (23, 926090), (46, 463045), (55, 387274), (110, 193637), (115, 185218), (230, 92609), (253, 84190), (506, 42095), (1265, 16838), (2530, 8419)]