21006987208

素因数分解:

$2^3\times {\mathrm{491}}^1\times {\mathrm{863}}^1\times {\mathrm{6197}}^1$

素因数の和:7557

約数の個数: 32

約数和(自身を含む): 39520431360

約数和(自身を除く): 18513444152

約数列:

[1, 2, 4, 8, 491, 863, 982, 1726, 1964, 3452, 3928, 6197, 6904, 12394, 24788, 49576, 423733, 847466, 1694932, 3042727, 3389864, 5348011, 6085454, 10696022, 12170908, 21392044, 24341816, 42784088, 2625873401, 5251746802, 10503493604, 21006987208]

約数ペア:

[(1, 21006987208), (2, 10503493604), (4, 5251746802), (8, 2625873401), (491, 42784088), (863, 24341816), (982, 21392044), (1726, 12170908), (1964, 10696022), (3452, 6085454), (3928, 5348011), (6197, 3389864), (6904, 3042727), (12394, 1694932), (24788, 847466), (49576, 423733)]