21492729

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{109}}^2$

素因数の和:294

約数の個数: 24

約数和(自身を含む): 32615520

約数和(自身を除く): 11122791

約数列:

[1, 3, 9, 27, 67, 109, 201, 327, 603, 981, 1809, 2943, 7303, 11881, 21909, 35643, 65727, 106929, 197181, 320787, 796027, 2388081, 7164243, 21492729]

約数ペア:

[(1, 21492729), (3, 7164243), (9, 2388081), (27, 796027), (67, 320787), (109, 197181), (201, 106929), (327, 65727), (603, 35643), (981, 21909), (1809, 11881), (2943, 7303)]