18897619

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:414

約数の個数: 16

約数和(自身を含む): 21022848

約数和(自身を除く): 2125229

約数列:

[1, 13, 47, 157, 197, 611, 2041, 2561, 7379, 9259, 30929, 95927, 120367, 402077, 1453663, 18897619]

約数ペア:

[(1, 18897619), (13, 1453663), (47, 402077), (157, 120367), (197, 95927), (611, 30929), (2041, 9259), (2561, 7379)]