21406626

素因数分解:

$2^1\times 3^3\times {\mathrm{353}}^1\times {\mathrm{1123}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 47747520

約数和(自身を除く): 26340894

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 353, 706, 1059, 1123, 2118, 2246, 3177, 3369, 6354, 6738, 9531, 10107, 19062, 20214, 30321, 60642, 396419, 792838, 1189257, 2378514, 3567771, 7135542, 10703313, 21406626]

約数ペア:

[(1, 21406626), (2, 10703313), (3, 7135542), (6, 3567771), (9, 2378514), (18, 1189257), (27, 792838), (54, 396419), (353, 60642), (706, 30321), (1059, 20214), (1123, 19062), (2118, 10107), (2246, 9531), (3177, 6738), (3369, 6354)]