28252419

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 43997184

約数和(自身を除く): 15744765

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 663, 731, 991, 1677, 2193, 2973, 9503, 12883, 16847, 28509, 38649, 42613, 50541, 127839, 219011, 553969, 657033, 724421, 1661907, 2173263, 9417473, 28252419]

約数ペア:

[(1, 28252419), (3, 9417473), (13, 2173263), (17, 1661907), (39, 724421), (43, 657033), (51, 553969), (129, 219011), (221, 127839), (559, 50541), (663, 42613), (731, 38649), (991, 28509), (1677, 16847), (2193, 12883), (2973, 9503)]