28372029

素因数分解:

$3^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{751}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 44235648

約数和(自身を除く): 15863619

約数列:

[1, 3, 7, 21, 49, 147, 257, 751, 771, 1799, 2253, 5257, 5397, 12593, 15771, 36799, 37779, 110397, 193007, 579021, 1351049, 4053147, 9457343, 28372029]

約数ペア:

[(1, 28372029), (3, 9457343), (7, 4053147), (21, 1351049), (49, 579021), (147, 193007), (257, 110397), (751, 37779), (771, 36799), (1799, 15771), (2253, 12593), (5257, 5397)]