18950477

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 23857344

約数和(自身を除く): 4906867

約数列:

[1, 7, 13, 83, 91, 169, 193, 581, 1079, 1183, 1351, 2509, 7553, 14027, 16019, 17563, 32617, 98189, 112133, 208247, 228319, 1457729, 2707211, 18950477]

約数ペア:

[(1, 18950477), (7, 2707211), (13, 1457729), (83, 228319), (91, 208247), (169, 112133), (193, 98189), (581, 32617), (1079, 17563), (1183, 16019), (1351, 14027), (2509, 7553)]