21516404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4547}}^1$

素因数の和:4584

約数の個数: 36

約数和(自身を含む): 46607904

約数和(自身を除く): 25091500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4547, 4732, 9094, 18188, 31829, 59111, 63658, 118222, 127316, 236444, 413777, 768443, 827554, 1536886, 1655108, 3073772, 5379101, 10758202, 21516404]

約数ペア:

[(1, 21516404), (2, 10758202), (4, 5379101), (7, 3073772), (13, 1655108), (14, 1536886), (26, 827554), (28, 768443), (52, 413777), (91, 236444), (169, 127316), (182, 118222), (338, 63658), (364, 59111), (676, 31829), (1183, 18188), (2366, 9094), (4547, 4732)]