20747121

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{601}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 28549248

約数和(自身を除く): 7802127

約数列:

[1, 3, 37, 111, 311, 601, 933, 1803, 11507, 22237, 34521, 66711, 186911, 560733, 6915707, 20747121]

約数ペア:

[(1, 20747121), (3, 6915707), (37, 560733), (111, 186911), (311, 66711), (601, 34521), (933, 22237), (1803, 11507)]