21000082

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7877}}^1$

素因数の和:7953

約数の個数: 16

約数和(自身を含む): 33276672

約数和(自身を除く): 12276590

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7877, 15754, 244187, 338711, 488374, 677422, 10500041, 21000082]

約数ペア:

[(1, 21000082), (2, 10500041), (31, 677422), (43, 488374), (62, 338711), (86, 244187), (1333, 15754), (2666, 7877)]