221475436

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20981}}^1$

素因数の和:21034

約数の個数: 48

約数和(自身を含む): 493496640

約数和(自身を除く): 272021204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 2639, 5278, 10556, 20981, 41962, 83924, 146867, 272753, 293734, 545506, 587468, 608449, 1091012, 1216898, 1909271, 2433796, 3818542, 4259143, 7637084, 7909837, 8518286, 15819674, 17036572, 31639348, 55368859, 110737718, 221475436]

約数ペア:

[(1, 221475436), (2, 110737718), (4, 55368859), (7, 31639348), (13, 17036572), (14, 15819674), (26, 8518286), (28, 7909837), (29, 7637084), (52, 4259143), (58, 3818542), (91, 2433796), (116, 1909271), (182, 1216898), (203, 1091012), (364, 608449), (377, 587468), (406, 545506), (754, 293734), (812, 272753), (1508, 146867), (2639, 83924), (5278, 41962), (10556, 20981)]