20868777

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2161}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 32040840

約数和(自身を除く): 11172063

約数列:

[1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 2161, 3219, 6483, 9657, 19449, 62669, 79957, 188007, 239871, 564021, 719613, 2318753, 6956259, 20868777]

約数ペア:

[(1, 20868777), (3, 6956259), (9, 2318753), (29, 719613), (37, 564021), (87, 239871), (111, 188007), (261, 79957), (333, 62669), (1073, 19449), (2161, 9657), (3219, 6483)]