28369187

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 36940800

約数和(自身を除く): 8571613

約数列:

[1, 7, 11, 49, 73, 77, 103, 343, 511, 539, 721, 803, 1133, 3577, 3773, 5047, 5621, 7519, 7931, 25039, 35329, 39347, 52633, 55517, 82709, 275429, 368431, 388619, 578963, 2579017, 4052741, 28369187]

約数ペア:

[(1, 28369187), (7, 4052741), (11, 2579017), (49, 578963), (73, 388619), (77, 368431), (103, 275429), (343, 82709), (511, 55517), (539, 52633), (721, 39347), (803, 35329), (1133, 25039), (3577, 7931), (3773, 7519), (5047, 5621)]