21590674

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 39890880

約数和(自身を除く): 18300206

約数列:

[1, 2, 7, 14, 29, 49, 58, 71, 98, 107, 142, 203, 214, 406, 497, 749, 994, 1421, 1498, 2059, 2842, 3103, 3479, 4118, 5243, 6206, 6958, 7597, 10486, 14413, 15194, 21721, 28826, 43442, 53179, 100891, 106358, 152047, 201782, 220313, 304094, 372253, 440626, 744506, 1542191, 3084382, 10795337, 21590674]

約数ペア:

[(1, 21590674), (2, 10795337), (7, 3084382), (14, 1542191), (29, 744506), (49, 440626), (58, 372253), (71, 304094), (98, 220313), (107, 201782), (142, 152047), (203, 106358), (214, 100891), (406, 53179), (497, 43442), (749, 28826), (994, 21721), (1421, 15194), (1498, 14413), (2059, 10486), (2842, 7597), (3103, 6958), (3479, 6206), (4118, 5243)]