21090258

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2837}}^1$

素因数の和:2911

約数の個数: 48

約数和(自身を含む): 53127360

約数和(自身を除く): 32037102

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 59, 63, 118, 126, 177, 354, 413, 531, 826, 1062, 1239, 2478, 2837, 3717, 5674, 7434, 8511, 17022, 19859, 25533, 39718, 51066, 59577, 119154, 167383, 178731, 334766, 357462, 502149, 1004298, 1171681, 1506447, 2343362, 3012894, 3515043, 7030086, 10545129, 21090258]

約数ペア:

[(1, 21090258), (2, 10545129), (3, 7030086), (6, 3515043), (7, 3012894), (9, 2343362), (14, 1506447), (18, 1171681), (21, 1004298), (42, 502149), (59, 357462), (63, 334766), (118, 178731), (126, 167383), (177, 119154), (354, 59577), (413, 51066), (531, 39718), (826, 25533), (1062, 19859), (1239, 17022), (2478, 8511), (2837, 7434), (3717, 5674)]