18563727

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1283}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 31062528

約数和(自身を除く): 12498801

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1283, 2067, 3849, 4823, 8981, 14469, 16679, 26943, 50037, 67999, 116753, 203997, 350259, 475993, 883987, 1427979, 2651961, 6187909, 18563727]

約数ペア:

[(1, 18563727), (3, 6187909), (7, 2651961), (13, 1427979), (21, 883987), (39, 475993), (53, 350259), (91, 203997), (159, 116753), (273, 67999), (371, 50037), (689, 26943), (1113, 16679), (1283, 14469), (2067, 8981), (3849, 4823)]