28818517

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 9082283

約数列:

[1, 7, 13, 23, 49, 91, 161, 281, 299, 343, 637, 1127, 1967, 2093, 3653, 4459, 6463, 7889, 13769, 14651, 25571, 45241, 84019, 96383, 102557, 178997, 316687, 588133, 1252979, 2216809, 4116931, 28818517]

約数ペア:

[(1, 28818517), (7, 4116931), (13, 2216809), (23, 1252979), (49, 588133), (91, 316687), (161, 178997), (281, 102557), (299, 96383), (343, 84019), (637, 45241), (1127, 25571), (1967, 14651), (2093, 13769), (3653, 7889), (4459, 6463)]