18263637

素因数分解:

$3^7\times 7^1\times {\mathrm{1193}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 31330560

約数和(自身を除く): 13066923

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1193, 1701, 2187, 3579, 5103, 8351, 10737, 15309, 25053, 32211, 75159, 96633, 225477, 289899, 676431, 869697, 2029293, 2609091, 6087879, 18263637]

約数ペア:

[(1, 18263637), (3, 6087879), (7, 2609091), (9, 2029293), (21, 869697), (27, 676431), (63, 289899), (81, 225477), (189, 96633), (243, 75159), (567, 32211), (729, 25053), (1193, 15309), (1701, 10737), (2187, 8351), (3579, 5103)]