20400579

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{2269}}^1$

素因数の和:2321

約数の個数: 24

約数和(自身を含む): 31398640

約数和(自身を除く): 10998061

約数列:

[1, 3, 9, 27, 37, 81, 111, 243, 333, 999, 2269, 2997, 6807, 8991, 20421, 61263, 83953, 183789, 251859, 551367, 755577, 2266731, 6800193, 20400579]

約数ペア:

[(1, 20400579), (3, 6800193), (9, 2266731), (27, 755577), (37, 551367), (81, 251859), (111, 183789), (243, 83953), (333, 61263), (999, 20421), (2269, 8991), (2997, 6807)]