21381036352

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{1976797}}^1$

素因数の和:1976835

約数の個数: 42

約数和(自身を含む): 45942762318

約数和(自身を除く): 24561725966

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 10816, 1976797, 3953594, 7907188, 15814376, 25698361, 31628752, 51396722, 63257504, 102793444, 126515008, 205586888, 334078693, 411173776, 668157386, 822347552, 1336314772, 1644695104, 2672629544, 5345259088, 10690518176, 21381036352]

約数ペア:

[(1, 21381036352), (2, 10690518176), (4, 5345259088), (8, 2672629544), (13, 1644695104), (16, 1336314772), (26, 822347552), (32, 668157386), (52, 411173776), (64, 334078693), (104, 205586888), (169, 126515008), (208, 102793444), (338, 63257504), (416, 51396722), (676, 31628752), (832, 25698361), (1352, 15814376), (2704, 7907188), (5408, 3953594), (10816, 1976797)]