21123252

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20233}}^1$

素因数の和:20272

約数の個数: 36

約数和(自身を含む): 55238820

約数和(自身を除く): 34115568

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20233, 40466, 60699, 80932, 121398, 182097, 242796, 364194, 586757, 728388, 1173514, 1760271, 2347028, 3520542, 5280813, 7041084, 10561626, 21123252]

約数ペア:

[(1, 21123252), (2, 10561626), (3, 7041084), (4, 5280813), (6, 3520542), (9, 2347028), (12, 1760271), (18, 1173514), (29, 728388), (36, 586757), (58, 364194), (87, 242796), (116, 182097), (174, 121398), (261, 80932), (348, 60699), (522, 40466), (1044, 20233)]