28640061

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{7523}}^1$

素因数の和:7582

約数の個数: 20

約数和(自身を含む): 43699392

約数和(自身を除く): 15059331

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 7523, 22569, 67707, 203121, 353581, 609363, 1060743, 3182229, 9546687, 28640061]

約数ペア:

[(1, 28640061), (3, 9546687), (9, 3182229), (27, 1060743), (47, 609363), (81, 353581), (141, 203121), (423, 67707), (1269, 22569), (3807, 7523)]