21026992

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{953}}^1$

素因数の和:1165

約数の個数: 40

約数和(自身を含む): 46845216

約数和(自身を除く): 25818224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 953, 1379, 1576, 1906, 2758, 3152, 3812, 5516, 6671, 7624, 11032, 13342, 15248, 22064, 26684, 53368, 106736, 187741, 375482, 750964, 1314187, 1501928, 2628374, 3003856, 5256748, 10513496, 21026992]

約数ペア:

[(1, 21026992), (2, 10513496), (4, 5256748), (7, 3003856), (8, 2628374), (14, 1501928), (16, 1314187), (28, 750964), (56, 375482), (112, 187741), (197, 106736), (394, 53368), (788, 26684), (953, 22064), (1379, 15248), (1576, 13342), (1906, 11032), (2758, 7624), (3152, 6671), (3812, 5516)]