21900670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5381}}^1$

素因数の和:5436

約数の個数: 32

約数和(自身を含む): 44175456

約数和(自身を除く): 22274786

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 5381, 10762, 26905, 53810, 59191, 118382, 199097, 295955, 398194, 591910, 995485, 1990970, 2190067, 4380134, 10950335, 21900670]

約数ペア:

[(1, 21900670), (2, 10950335), (5, 4380134), (10, 2190067), (11, 1990970), (22, 995485), (37, 591910), (55, 398194), (74, 295955), (110, 199097), (185, 118382), (370, 59191), (407, 53810), (814, 26905), (2035, 10762), (4070, 5381)]