21401739

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{3037}}^1$

素因数の和:3081

約数の個数: 24

約数和(自身を含む): 33174960

約数和(自身を除く): 11773221

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 3037, 7047, 9111, 27333, 81999, 88073, 245997, 264219, 737991, 792657, 2377971, 7133913, 21401739]

約数ペア:

[(1, 21401739), (3, 7133913), (9, 2377971), (27, 792657), (29, 737991), (81, 264219), (87, 245997), (243, 88073), (261, 81999), (783, 27333), (2349, 9111), (3037, 7047)]