21307220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96851}}^1$

素因数の和:96871

約数の個数: 24

約数和(自身を含む): 48813408

約数和(自身を除く): 27506188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96851, 193702, 387404, 484255, 968510, 1065361, 1937020, 2130722, 4261444, 5326805, 10653610, 21307220]

約数ペア:

[(1, 21307220), (2, 10653610), (4, 5326805), (5, 4261444), (10, 2130722), (11, 1937020), (20, 1065361), (22, 968510), (44, 484255), (55, 387404), (110, 193702), (220, 96851)]