20270117

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1283}}^1$

素因数の和:1388

約数の個数: 16

約数和(自身を含む): 24200832

約数和(自身を除く): 3930715

約数列:

[1, 7, 37, 61, 259, 427, 1283, 2257, 8981, 15799, 47471, 78263, 332297, 547841, 2895731, 20270117]

約数ペア:

[(1, 20270117), (7, 2895731), (37, 547841), (61, 332297), (259, 78263), (427, 47471), (1283, 15799), (2257, 8981)]