20403021

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{463}}^1$

素因数の和:900

約数の個数: 16

約数和(自身を含む): 28070144

約数和(自身を除く): 7667123

約数列:

[1, 3, 37, 111, 397, 463, 1191, 1389, 14689, 17131, 44067, 51393, 183811, 551433, 6801007, 20403021]

約数ペア:

[(1, 20403021), (3, 6801007), (37, 551433), (111, 183811), (397, 51393), (463, 44067), (1191, 17131), (1389, 14689)]