21468573

素因数分解:

$3^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{787}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 35567168

約数和(自身を除く): 14098595

約数列:

[1, 3, 7, 9, 21, 63, 433, 787, 1299, 2361, 3031, 3897, 5509, 7083, 9093, 16527, 27279, 49581, 340771, 1022313, 2385397, 3066939, 7156191, 21468573]

約数ペア:

[(1, 21468573), (3, 7156191), (7, 3066939), (9, 2385397), (21, 1022313), (63, 340771), (433, 49581), (787, 27279), (1299, 16527), (2361, 9093), (3031, 7083), (3897, 5509)]