20787304887

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{108943}}^1$

素因数の和:109180

約数の個数: 32

約数和(自身を含む): 31794216960

約数和(自身を除く): 11006912073

約数列:

[1, 3, 9, 27, 37, 111, 191, 333, 573, 999, 1719, 5157, 7067, 21201, 63603, 108943, 190809, 326829, 980487, 2941461, 4030891, 12092673, 20808113, 36278019, 62424339, 108834057, 187273017, 561819051, 769900181, 2309700543, 6929101629, 20787304887]

約数ペア:

[(1, 20787304887), (3, 6929101629), (9, 2309700543), (27, 769900181), (37, 561819051), (111, 187273017), (191, 108834057), (333, 62424339), (573, 36278019), (999, 20808113), (1719, 12092673), (5157, 4030891), (7067, 2941461), (21201, 980487), (63603, 326829), (108943, 190809)]