21340449

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 34348160

約数和(自身を除く): 13007711

約数列:

[1, 3, 9, 13, 27, 39, 117, 163, 351, 373, 489, 1119, 1467, 2119, 3357, 4401, 4849, 6357, 10071, 14547, 19071, 43641, 57213, 60799, 130923, 182397, 547191, 790387, 1641573, 2371161, 7113483, 21340449]

約数ペア:

[(1, 21340449), (3, 7113483), (9, 2371161), (13, 1641573), (27, 790387), (39, 547191), (117, 182397), (163, 130923), (351, 60799), (373, 57213), (489, 43641), (1119, 19071), (1467, 14547), (2119, 10071), (3357, 6357), (4401, 4849)]