21557303518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{71081}}^1$

素因数の和:71472

約数の個数: 32

約数和(自身を含む): 35620611840

約数和(自身を除く): 14063308322

約数列:

[1, 2, 19, 23, 38, 46, 347, 437, 694, 874, 6593, 7981, 13186, 15962, 71081, 142162, 151639, 303278, 1350539, 1634863, 2701078, 3269726, 24665107, 31062397, 49330214, 62124794, 468637033, 567297461, 937274066, 1134594922, 10778651759, 21557303518]

約数ペア:

[(1, 21557303518), (2, 10778651759), (19, 1134594922), (23, 937274066), (38, 567297461), (46, 468637033), (347, 62124794), (437, 49330214), (694, 31062397), (874, 24665107), (6593, 3269726), (7981, 2701078), (13186, 1634863), (15962, 1350539), (71081, 303278), (142162, 151639)]