20770677

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 30970368

約数和(自身を除く): 10199691

約数列:

[1, 3, 9, 43, 129, 191, 281, 387, 573, 843, 1719, 2529, 8213, 12083, 24639, 36249, 53671, 73917, 108747, 161013, 483039, 2307853, 6923559, 20770677]

約数ペア:

[(1, 20770677), (3, 6923559), (9, 2307853), (43, 483039), (129, 161013), (191, 108747), (281, 73917), (387, 53671), (573, 36249), (843, 24639), (1719, 12083), (2529, 8213)]