19998278

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{5099}}^1$

素因数の和:5191

約数の個数: 16

約数和(自身を含む): 31395600

約数和(自身を除く): 11397322

約数列:

[1, 2, 37, 53, 74, 106, 1961, 3922, 5099, 10198, 188663, 270247, 377326, 540494, 9999139, 19998278]

約数ペア:

[(1, 19998278), (2, 9999139), (37, 540494), (53, 377326), (74, 270247), (106, 188663), (1961, 10198), (3922, 5099)]